"Claire also continues to believe the states should take the lead in determining marriage equality," McCaskill spokesman John LaBombard told PolitcMO. "The State of Missouri's position on this issue has been clearly established since 2004 and nothing about today's announcement changes that." Ohio: Sen. Sherrod Brown was one of a handful of House member who voted against the Defense of Marriage Act in 1996. A proponent of marriage equality, Brown reacted warmly to the president's news on Wednesday. "What has made America special throughout our history is the constant effort to secure rights for all of our citizens. Our LGBT friends, co-workers, and neighbors should have the same rights enjoyed by all Americans," Brown said in a statement. Ohio is another state heavy with blue collar whites (48 percent of the state's Senate electorate in 2010, according to exit polling) and while Brown's brand of economic populism may resonate with those voters, they are less likely to fully embrace same-sex marriage. But like Kaine, Brown's outlook is tied closely to the president's, so his coalition will ultimately look very similar. If the Obama campaign can successfully navigate Ohio with the social positions the president has adopted, odds are, so can Brown.