This morning, on NPR, Senator Clinton admitted to breaking her pledge to the DNC. She stated:
"... we all had a choice as to whether or not to participate in what was going to be a primary. And most people took their names off the ballot, but I didn't. And I think that was a wise decision because Michigan is key to our electoral victory in the fall.
This is a direct and unequivocable violation of her pledge to the DNC and Democratic voters. She signed a pledge not to campaign OR PARTICIPATE. Here's the relevant section of the pledge (pdf):
THEREFORE, I (Hillary Clinton), Democratic Candidate for President, in honor and in accordance with DNC rules, pledge to actively campaign in the pre-approved early states Iowa, Nevada, New Hampshire and South Carolina. I pledge I shall not campaign or participate in any election contest occurring in any state not already authorized by the DNC to take place in the DNC approved pre-window (any date prior to February 5, 2008).
By her own admission, she has broken her pledge.
As she stated, she had a choice to make - and she chose to break her word.