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Former White House Deputy Chief of Staff Karl Rove and Republican National Committee Chairman Robert M. Duncan at the Republican National Committee’s winter meeting January 16, 2008 in Washington, DC.(Photo by Win McNamee/Getty Images)

by Frank James

The Republican National Committee wants Sen. Barack Obama to know that if he thinks he’s seen the epitome of opposition research from the Clinton campaign, he’s sorely mistaken.

At his press conference this morning in Chicago before heading back out on the campaign trail, Obama said:

”I have to just respond by saying that the Clinton research operation is about as good as anybody’s out there. I assure you that having engaged in a contest against them for the last year that they’ve pulled out all the stops.”

To which RNC spokesman Alex Conant responded thusly:

“With all due respect to the Clinton ‘machine’, should Barack Obama win the nomination, I’m sure Republicans will have plenty of arguments to level against the Senate’s ‘most liberal’ member.”

The “most liberal” member was a jab at Obama based on a recent National Journal story we reported on here

in The Swamp in which the Washington-based publication labeled the senator from Illinois the Senate’s utmost liberal in 2007 based on his voting record.

Should he become the nominee, Obama may want to look into getting one of those asbestos suits Sen. Hillary Clinton has boasted of having.