Attuned to a jittery public, the Senate in a rare weekend session votes 72-13 to help stall foreclosures and bolster Fannie Mae and Freddie Mac. Critics call it a potentially costly bailout. Congress completed work today Saturday on the government's most sweeping response yet to the nation's housing crisis, sending to President Bush a bill designed to help homeowners avoid foreclosure, spur home buying and prop up struggling mortgage giants Fannie Mae and Freddie Mac.