Flashback to December of 2011 when Mitt Romney told Newt Gingrich to quit "whining" about attack ads:



If you can't stand the relatively modest heat in the kitchen right now, wait until Obama's hell kitchen shows up. It's probably a good thing for us to get this out in the air right now so people can have the chance to know what's going to come down the road if any one of us happens to become the nominee.

Look, this is a campaign. We've got to have broad shoulders. You can't spend your time whining about the fact that people are drawing attention to your record in the past. I’ve been attacked. It's fine. Get used to it. It is going to get a lot of worse.

Let me tell you, it hasn't begun yet. Wait until President Obama gets in with our nominee with a $1 billion to spend. You have to have somebody who can take his message to Obama and fight back. And I'll fight back hard.

"Speaker Gingrich," said Romney, "is not revealing himself to be the kind of person I think he would want to be seen in this race for president, because fundamentally, we look for qualities in a president, but we don't look for whining and excuses."

Reasonable point. As he told Fox's Brit Hume later that month:Or as he said to Sean Hannity on January 2 of this year And:But now Mitt finds himself under attack. And despite his tough talk against Newt Gingrich, we're finding out just how fragile his jaw really is. And he's becoming a little—dare I say— unhinged

Via BuzzFeed's Andrew Kaczynski, here's another one: Mitt at a debate, telling Newt to stop whining.