Barack Obama is seizing on John McCain's assertion that U.S. troops are down to pre-surge levels in Iraq (McCain appears to have been off by about 20,000). The Obama campaign just sent out some of the prepared remarks Obama plans to deliver in Montana tonight.

In those remarks, Obama reacts to McCain's campaign's reaction that making issue of the troop discrepancy is "nitpicking," saying, "I don’t think tens of thousands of American troops amounts to nitpicking."

He also accuses McCain, in inviting Obama to travel to Iraq with him, of a political stunt and an effort to raise campaign dollars.

For good measure Obama also plans to throw in a reference to former White House press secretary Scott McClellan whose new book is critical of Bush. "Just this week, we were reminded by President Bush’s own former spokesman of how it was deception – not straight talk – that misled the American people into war. It’s time to cut through the tough talk so that we can be straight with the American people about a war that’s cost us thousands of lives and hundreds of billions of dollars without making us safer."