President Barack Obama answers questions during a news conference in the East Room of the White House in Washington Wednesday. A chastened President Barack Obama signaled a new willingness to yield to Republican demands on tax cuts and jettisoned a key energy priority on Wednesday, less than 24 hours after he and fellow Democrats absorbed election losses so severe he called them a shellacking. David Espo Washington Post story here. (AP Photo/Pablo Martinez Monsivias)

Question: What must congressional Republicans do to keep their momentum over the next two years and set stage for further gains. What must Barack Obama do to save his presidency in 2012?