FILE - In this Aug. 20, 1992 file photo, President George H.W. Bush and first lady Barbara Bush join in song during an ecumenical prayer breakfast in Houston, before Bush delivered a speech as he accepted the nomination of the Republican Party to serve a second term. President Barack Obama's "we can't wait" refrain is all about projecting a sense of urgency and bold action heading into his fourth year in office. It turns out recent presidents haven't had much luck with that. The fourth year is often a disappointment, particularly when a president facing re-election is trying coax action out of a Congress in the hands of the other party. The heady optimism of earlier years gets bogged down in partisan bickering, and big initiatives give way to less ambitious steps. (AP Photo/James Finley, File)