Once again, Mark and I disagree.
1) What Reid said is not McCarthyism because his allegations are easy to disprove with evidence that Mitt Romney himself has, viz., Romney’s tax returns. It’s not at all like accusing somebody of being something because of someone that they knew, or proving that they weren’t a Communist. If Romney wants to show that Reid is full of crap, then all he needs to do is release his returns.
2) What Reid said is not slimy because demanding that Romeny release his returns is perfectly legitimate. Every party nominee for 40 years has done the same thing. He’s not asking Romney to, say, release sealed divorce records (the case of Jack Ryan, who was going to be Obama’s opponent in the 2004 Senate race) or release the Romney sex tape or some such. These are tax records. They are fair game.
3) And they are particularly fair game because Romney’s whole campaign is based on the idea that he is some sort of economic genius who will wave fairy dust over the economy like he did with, say, his IRA. Fine: show us the goddam fairy dust.
Reid is right. Romney is wrong. Put up or shut up, Mitt. End of story.
TBogg has more, including the notion that Harry Reid is the honey badger. See for yourself.
QUICK UPDATE: I could be persuaded otherwise if I thought Reid was just making his source up out of whole cloth, but he isn’t: Dana Bash reports that Reid’s source 1) exists; and 2) is very credible. Mitt’s in trouble, and he deserves it.