Gibbs response to Bush’s criticism of Obama’s policies are a bit of a non sequitur:

Responding to criticism from former President George W. Bush, White House press secretary Robert Gibbs said President Obama’s victory last year was a repudiation of Bush’s policies.
[…]
Gibbs said Thursday that many of those policies were debated during last year’s election.

It really isn’t a response to the criticisms since it doesn’t matter what the American people thought of his policies when they elected Obama. Especially, since Obama voters seem to think he’s going to do what they want him to do.
Did a majority of the American voters (not a majority of the population) want Obama to make them pay a tax on their health care (Obama promised not to raise taxes on those making under $250,000 and he criticized McCain for proposing a tax on health care benefits), spend trillions of dollars insuring those who don’t have it and rationing care to those on Medicare and Medicaid (how else do you think they’re going to cut cost)?
Do you think the Obama voters thought past the whole closing of Gitmo and thought about what we were going to do with the terrorists when it was closed? Apparently Obama didn’t.
Do you think the majority of the American voters realized that he was going to nationalize the auto industry and the banks? When did he say that? Did they realize that he was going to pour billions of dollars into the states saying it was for the creation of jobs? Did they realize that he would drive up the deficit by trillions of dollars for years to come?
But even if they did or didn’t want Obama’s polices (or even know what they were when they voted for him), are Bush’s criticisms valid?

“I know it’s going to be the private sector that leads this country out of the current economic times we’re in,” the former president said to applause from members of a local business group. “You can spend your money better than the government can spend your money.”
[…]
“I told you I’m not going to criticize my successor,” he said. “I’ll just tell you that there are people at Gitmo that will kill American people at a drop of a hat and I don’t believe that — persuasion isn’t going to work. Therapy isn’t going to cause terrorists to change their mind.”
[…]
“There are a lot of ways to remedy the situation without nationalizing health care,” Mr. Bush said. “I worry about encouraging the government to replace the private sector when it comes to providing insurance for health care.”

It’s much easier to make a snotty reply than to defend Obama’s overreach.