It’s time for Rick Santorum to go. He’s getting more whiny than usual and it’s getting tiresome. …

He’s got every right to take a shot at Mitt Romney. And he’s got every right to believe he’s stands a better chance of defeating President Obama than does Romney, even if he’s wrong. But what he said next was just plain petulant.

“If they’re going to be a little different,” he said, “we might as well stay with what we have instead of taking a risk of what may be the Etch A Sketch candidate for the future.” That was a reference to a Romney adviser’s comment that “everything changes” when the campaign begins in earnest in the fall. “It’s almost like an Etch A Sketch,” the adviser Eric Fehrnstrom said. “You can kind of shake it up and we start all over again.”

Usually the politically dumb statements come from Romney himself. Does this gaffe feed into the image that Romney is a waffler who will say anything that serves his political purposes at the moment? Yes. It’s Romney’s biggest weakness and for good reason: he is a waffler. But Santorum went way too far in saying Romney is no better than President Obama, prompting this entirely accurate headline in the Washington Post: Santorum says voters might as well re-elect Obama because Romney offers little difference