But it might be a bit premature to assume that in his silence, George W. Bush finally gotten close to 50-50 rating. NBC and Wall Street Journal tested Bush's favorability earlier this month and they found his rating was still under water: 35 percent gave him a positive rating and 44 percent viewed him negatively. That's better than his 31/58 rating in January of 2009, but it's still below 50/50 and it's actually worse than his 37/40 rating in May 2011.
But let's set aside the NBC/WSJ poll for a second and assume the ABC/Washington Post one has the numbers right. First, as @LOLGOP points out:
But of course, despite the fact that Bush was the Worst President Of Our Lives™, 84 percent of Republicans approve of his job performance. The bottom line is probably that Bush is a bit less unpopular now than he was immediately after leaving office, but not much—if any—more popular. And the GOP is not in any better shape.