Republicans will be judged by the voters. If they want to obstruct and filibuster while the economy is in free fall, the president should call their bluff and let them go at it. In the first four years after F.D.R. took over from Hoover, the already decimated ranks of Republicans in Congress fell from 36 to 16 in the Senate and from 117 to 88 in the House. The G.O.P. is so insistent that the New Deal was a mirage it may well have convinced itself that its own sorry record back then didn't happen either.