Democratic strategist James Carville said he would rather have a rat for a senator than Rep. Roy Blunt (R-Mo.).

Carville sent out a fundraising e-mail for Missouri Senate candidate Robin Carnahan (D), in which he offered reasons for why Blunt is the wrong choice as the next Missouri senator.

“In my years working in politics, I've seen things that really made me angry, but the level of misdirection and the outright lies perpetrated by Congressman Blunt's campaign and his fat cat buddies are enough to make me start spluttering,” said Carville.

He wrote: "If I had to pick either the rat or Congressman Blunt to represent me in the US Senate, I'd take the rat seven days a week and twice on Sunday."

Carville mentions Blunt’s involvement in the Bush/Cheney years that “sent our economy in a downward spiral.” He goes on to explain the direction of Blunt’s campaign, which is “pouring endless money into misleading attack ads against Robin in an attempt to defend Blunt's completely indefensible record of sticking up for corporations while sticking it to the middle class.”

In a Real Clear Politics average of polls between July 19 and Oct. 2, Blunt leads Carnahan by 5.5 points — 48 percent to 42.5 percent.