Grab your popcorn, get comfortable and tune in during primetime: Harry Reid and Mitt Romney are in the middle of a war of words and it's not going to end any time soon. Taxerism is officially a thing. At least, that's what we're calling it. Harry Reid established himself as the leader of the taxerism movement when he told reporters someone told him Romney hasn't paid taxes for 10 years. Romney refuses to release any more of his tax returns than he already has, and there are theories he paid no taxes in 2009. This would support that theory. 

It took a day or two, but Romney finally responded to Reid's comments on Sean Hannity's radio show on Thursday afternoon. Romney said it was time for Reid to "put up or shut up" and reveal his source: 

“Well, it’s time for Harry to put up or shut up. Harry’s going to have to describe who it is he spoke with, because, of course, that’s completely and totally wrong. It’s untrue, dishonest, and inaccurate. It’s wrong. So I’m looking forward to have Harry reveal his sources, and we’ll probably find out it’s the White House.”

Romney also said something about the Obama campaign avoiding talking about the economy, his favorite defense for every attack Democrats throw at him, and accused them of focusing on lesser sandwich meats like "baloney." 

Is Harry Reid backing down from big, bad Mitt Romney? No, sir. Harry Reid is not backing down. He released a statement Thursday evening in which he described his source as "extremely credible." Reid punctuated his point by saying there's only one logical conclusion to this argument: "There is only one thing he can do to clear this up, and that’s release his tax returns." Talking Points Memo has the full statement if you're interested. 

This tax return thing isn't going to go away. Like birtherism before it, the only thing that could stop people from talking about it was the President releasing his birth certificate. And even that didn't totally work