Barack Obama officially added his name to the roster of Democratic presidential candidates taking part in the March 4 Texas primary, which may or may not mean something that late in the ball game. Well, he didn't do it. Obama had former Dallas Mayor Ron Kirk filing his paperwork today, as Kirk and other Obamaniacs filed the official paperwork in Austin at Texas Democratic Party headquarters. Said Kirk: "The beauty and joy of the political process is it just changes so quickly." --Robert Wilonsky

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