Senate Minority Leader Harry Reid, who spent much of the 2012 campaign criticizing Mitt Romney, expressed surprise at the notion that Romney would call on anyone to release their tax returns. | AP Photo Reid mocks Romney over Trump's taxes

Harry Reid spent months attacking Mitt Romney in 2012 for not releasing his tax returns. Now the Democratic leader is at it again, after Romney suggested this week there could be a "bombshell" in Donald Trump's tax returns.

An incredulous Reid mocked Romney's statements about Trump's taxes when the Nevadan was asked about them on Thursday.


"Ha, ha. (Romney) never gave us his tax returns. Who was the brainchild that got him to do that?" Reid said at a news conference."He gave us a summary. He never gave us his tax returns."

Romney's "bombshell" remark mirrored Reid's repeated claims four years ago that an anonymous source told him that Romney hadn't paid taxes for 10 years.

But could there be a bombshell in Trump's tax returns? Reid wouldn't say.

"All I know is, I can't imagine Romney having the gall coming out (and calling) for anybody's tax returns," Reid said.