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Newly-minted vice presidential candidate Paul Ryan got an official "welcome to the race" from President Obama yesterday. "My opponent chose his running mate, the ideological leader of the Republicans in Congress, Mr. Paul Ryan," Obama said at a fundraiser in Chicago yesterday. "I want to congratulate Congressman Ryan. I know him; I welcome him to the race." And, the president added, "Congressman Ryan is a decent man. He is a family man. He's an articulate spokesman for Governor Romney's vision -- but it's a vision that I fundamentally disagree with." And with that, the ideological debate begins The Obama campaign is up this morning with new web video from Florida -- where Mitt Romney campaigns today -- featuring seniors talking about the consequences of a Romney-Ryan ticket. "Medicare is a boon to senior citizens," one white-haired Florida woman says. "And without that we choose between food and going to a doctor." Get more pure politics at ABC News.com/Politics and a lighter...