NEW : Obama says he will file papers Monday . NEW : Obama : We need to mobilize `` long before '' the time to seriously campaign . He is making his campaign official slightly earlier than is typical for an incumbent . Using what apparently will be one of his campaign slogans , `` It begins with us , '' the campaign has told supporters that the kickoff of the campaign has started and that means the race for contributions is on . New York Times reports that Obama has been in Washington since Tuesday, and plans to return on Wednesday morning.
NEW : Obama says he will file papers Monday . NEW : Obama : We need to mobilize `` long before '' the time to seriously campaign . He is making his campaign official slightly earlier than is typical for an incumbent . New York Times reports that Obama has been in Washington since Tuesday, and plans to return on Wednesday morning.