This took a lot longer to put together than I thought. The list kept growing the more I looked. I'm still not sure if this is complete. Please add any I missed in the comments.
Americans for Tax Reform lists 219 of 435 incoming Representatives and 39 of 100 incoming Senators who signed Grover's pledge (PDF). 18 Representatives and 11 Senators have renounced their pledge as of 11/29/12. This leaves 201 Representatives and 28 Senators.
Remember this list does not even include the 4 incoming Republican Senators and 16 incoming Republican Representatives who never signed the pledge to begin with and don't plan to sign. References below and at DEARGROVER.COM.
Robert Andrews (NJ-01)
Howard Coble (NC-06)
Tom Cole (OK-04)
Scott DesJarlais (TN-04)
Jeff Fortenberry (NE-01)
Chris Gibson (NY-19)
Peter King (NY-02)
John Kline (MN-02)
Tom Latham (IA-03)
Pat Meehan (PA-07)
Rich Nugent (FL-11)
Erik Paulsen (MN-03)
Reid Ribble (WI-08)
Scott Rigell (VA-02)
Jon Runyan (NJ-03)
Mike Simpson (ID-02)
Adrian Smith (NE-03)
Lee Terry (NE-02)
Lamar Alexander (TN-SEN)
Saxby Chambliss (GA-SEN)
Tom Coburn (OK-SEN)
Bob Corker (TN-SEN)
Mike Crapo (ID-SEN)
Mike Enzi (WY-SEN)
Lindsey Graham (SC-SEN
Mike Johanns (NE-SEN)
John McCain (AZ-SEN)
Jeff Sessions (AL-SEN)
David Vitter (LA-SEN)
UPDATE: Added two more names, Mike Enzi and Rich Nugent. Thanks to commenters. Should also note Jeff Sessions is being very vague but still have him in the list for now.
The following Republican Representatives have all renounced their pledge.
Robert Andrews (NJ-01) spoke to The Hill on 11/9/11:
Andrews told The Hill he signed the document a single time, in 1992, and wants his name removed. "I understood it to mean that for the next term, if I were elected, I would not vote to raise taxes," Andrews, who called the ATR website "terribly misleading," said in an interview. "I honored that pledge. I never renewed it. I never considered it to be like my marriage vows," he added. "I’m married to Camille Andrews, not Grover Norquist. I promised her to be faithful until death do us part, and I mean it. I did not promise him to oppose tax increases until death do us part."Howard Coble (NC-06) spoke to the News Observer on 11/28/12:
"I’m not enthusiastic about it (the possibility of a tax increase)," says Coble, a longtime congressman from Greensboro who signed the pledge around 1986 during his second term. "But I don’t think anything should be off the table. Just because I advocate for that, I may or may not vote for it. But that would depend on what is finally handed to us."Tom Cole (OK-04) spoke to Politico on 11/27/12:
"I think we ought to take the 98 percent deal right now," he said of freezing income tax rates for all but the top 2 percent of earners. "It doesn’t mean I agree with raising the top 2. I don’t."Scott DesJarlais (TN-04) released a statement on 11/27/12:
"The only pledge that matters is the one I made to my constituents to always represent their interests in Congress. I will judge any legislation put forth to avoid the fiscal cliff based solely upon the wishes and needs of the people of Tennessee’s Fourth Congressional District."Jeff Fortenberry (NE-01) spoke to constituents on 8/8/11:
"I did sign that pledge when I was first running" for the House in 2004, Fortenberry said. "I no longer sign any pledges." A pledge "restrains your ability to think creatively," he said, noting Norquist attempts to interpret and define what is considered a tax increase. "I informed the organization I don't consider (the earlier pledge) binding," Fortenberry said. "I don't care to be associated with it. It's too constraining."Chris Gibson (NY-19) released a statement on 11/29/12:
"Regarding the pledge moving forward, Congressman Gibson doesn’t plan to resign it for the 19th Congressional District, which he now represents (the pledge is to your constituents of a numbered district). Those voters have just evaluated the Congressman on his record and his record is the same as his position now – again, that he’ll fight for tax policy that helps those he represents."Peter King (NY-02) spoke to NBC News on 11/25/12:
"First of all, I agree entirely with Saxby Chambliss. A pledge you signed 20 years ago, 18 years ago, is for that Congress. For instance, if I were in Congress in 1941, I would have signed a declaration of war against Japan. I’m not going to attack Japan today. The world has changed. And the economic situation is different."John Kline (MN-02) spoke to the Star Tribune on 11/27/12:
But Kline, who signed the pledge as a candidate for Congress, said he views it as a commitment to oppose higher tax rates, not reforms that could actually produce more revenue. "Most people who signed that pledge would say that increasing revenues through lowering rates and simplifying the code is certainly consistent with what we thought we were signing on to," he said in an interview.Tom Latham (IA-03) released a statement on 11/29/12:
Rep. Tom Latham, R-Iowa, understands that everything is on the table, said his chief of staff James Carstensen. He will judge any proposal on its merits, Carstensen said. "He’s not worried about a pledge to Grover Norquist," Carstensen said. "His concern is about the people of Iowa and what’s best for them."Pat Meehan (PA-07) released a statement on 11/28/12:
Both Republicans stopped short of saying they would raise any tax rates, but said revenues could be increased by closing loopholes. "The most important pledge is the one I make to my constituents when I'm sworn in," Meehan said in a statement. "I'm going to do the very best I can to avoid the fiscal cliff and keep our economy strong."Rich Nugent (FL-11) spoke to the Ocala Star Banner on 11/28/12:
"As someone with a voting record and dozens of public statements on the matter, I think people know exactly where I stand. That's why on this, and any number of other issues, I decided not to sign any pledges at all this year," Nugent said.Erik Paulsen (MN-03) spoke to the Star Tribune on 11/27/12:
Paulsen also distanced himself from a literal reading of the tax pledge, saying in a separate interview that "the details matter on what loopholes there would be or the tax revenue changes there would be." Paulsen also noted that he signed the pledge as a member of the Minnesota Legislature, not as a member of Congress. The version signed by state legislators states simply that "I will oppose and vote against any and all efforts to increase taxes."Reid Ribble (WI-08) spoke to the LA Times on 11/4/11:
He'd even like to see some taxes cut. But when it comes to, say, closing the tax loophole for ethanol producers, and using that new revenue to bring down the debt, he parts company with the anti-tax stalwart. The only pledge he's pledging to make in the future is to his constituents in Wisconsin. "I want to be intellectually honest with the folks back home," Ribble said Friday. "I'm no longer signing any pledges to anybody. I'm not going to sign it next year."Scott Rigell (VA-02) wrote to constituents on 2/2/12:
"About two and a half years ago I signed the Americans for Tax Reform (ATR) Pledge. Much has transpired since then and I recently informed Grover Norquist, the President of ATR, of my decision to not renew the pledge as I seek re-election."Jon Runyan (NJ-03) released a statement on 11/28/12:
Runyan, also in a statement, said the Norquist pledge "will not be a part of my decision-making process. I firmly believe that this discussion should allow for all ideas to be on the table and open for discussion, including spending cuts, entitlement reform, and increasing revenue." The congressmen, each of whom just won a second term in a moderate suburban district, joined a growing list of lawmakers who have said they will not be bound by the antitax pledge amid negotiations over how to avoid the fiscal cliff. "The nation is looking to Washington to put partisanship aside and come up with a compromise," Runyan said.Mike Simpson (ID-02) spoke to Reuters on 11/29/12:
"I wouldn't have a problem with letting those tax rates go up," provided they are coupled with spending cuts, Representative Mike Simpson said. Simpson said that raising taxes on the rich "wouldn't be my preferred way to do it. But elections have consequences," referring to Obama winning a second term earlier this month.Adrian Smith (NE-03) spoke to the World Herald on 11/29/12:
“The pledge is not as applicable to this situation, because doing nothing is what makes taxes go up,” said Rep. Adrian Smith, R-Neb, a member of the tax-writing House Ways and Means Committee who, like others interviewed for this article, opposes increasing tax rates. "If we have a package that really addresses what our economy needs and what we should avoid... I don’t see the pledge being an issue."Lee Terry (NE-02) spoke to the World Herald on 11/29/12:
Rep. Lee Terry, R-Neb., signed Norquist's pledge but says now that he's open to a deal that includes some new tax revenues. Still, he said, the president needs to work across the aisle. "He's not dealing with terrorists, he's dealing with Republicans who don't want to raise taxes," Terry said.
The following Republican Senators have also renounced their pledge.
Lamar Alexander (TN-SEN) spoke to Roll Call on 6/15/11:
“My view is a good way to reduce the debt is to get rid of unwarranted tax breaks,” GOP Conference Chairman Lamar Alexander (Tenn.) said.Saxby Chambliss (GA-SEN) spoke to WMAZ on 11/21/12:
"I care more about my country than I do about a 20-year-old pledge," Chambliss says. "If we do it his way then we'll continue in debt, and I just have a disagreement with him about that."Tom Coburn (OK-SEN) wrote to the New York Times on 7/15/12:
"I recently proposed amendments to end tax earmarks for movie producers and the ethanol industry. Mr. Norquist charged that those measures would be tax hikes unless paired with dollar-for-dollar rate reductions. And yet all but six of the 41 Senate Republicans who had signed his pledge voted for my amendments."Bob Corker (TN-SEN) spoke to CBS News on 11/26/12:
"Well, I’m not obligated on the pledge. I made Tennesseans aware, I was just elected, that the only thing I’m honoring is the oath that I take when I serve, when I’m sworn in this January."Mike Crapo (ID-SEN) released a statement on 12/2/10:
“This plan will not just avert a disaster, but help drive the kind of economic recovery we need to create jobs and spur growth. The plan’s provisions to lower tax rates while creating fairness in the tax code are similar to pro-growth policies supported by President Reagan. The plan also reduces discretionary spending and takes meaningful steps to preserve Social Security. Taking steps now to reduce our debt burden and slow unsustainable entitlement spending can help prevent massive and debilitating tax increases in the future. Finally, all of these steps will send a clear signal to investors that America is serious about getting its fiscal house in order.”Mike Enzi (WY-SEN) released a statement on 11/29/12:
Enzi signed it during his first Senate campaign in 1996 but has not signed any pledges since, said his spokesman, Dan Head. Part of the problem, Head said by email, is that pledges can be open to interpretation and the meaning can change over time. For example, some lawmakers have used the Americans for Tax Reform pledge to defend spending, he said. "Grover Norquist doesn't live in Wyoming and Sen. Enzi's primary concern is what is best for his constituents," Head said. "He will not give away his vote to someone else's stretched interpretation."Lindsey Graham (SC-SEN) spoke to ABC News on 6/12/12:
"When you eliminate a deduction, it's okay with me to use some of that money to get us out of debt. That's where I disagree with the pledge," said Graham.Mike Johanns (NE-SEN) spoke to the World Herald on 11/29/12:
"Depending upon how willing they are to reform what’s driving the spending, which is entitlements, I’ll be willing to talk about slimming down (tax) deductions, closing loopholes," Johanns said.John McCain (AZ-SEN) spoke to Fox News on 11/25/12:
"I would be very much opposed to raising tax rates. But I do believe we can close a lot of loop holes."Jeff Sessions (AL-SEN) spoke to Fox News on 11/27/12:
"Oh, I signed it," Sen. Jeff Sessions of Alabama said on Fox News about Norquist's pledge, adding he still supports its goals. "But we've got to deal with the crisis we face. We've got to deal with the political reality of the president's victory."David Vitter (LA-SEN) spoke to the Times Pacayune on 11/27/12:
Sen. David Vitter, R-La., said "like the great majority of Republicans," he's open "to a reasonable compromise that significantly lowers deficit and debt, particularly new revenue from upper income folks through fundamental tax reform combined with real and significant spending reform."