Senate Majority Leader Harry Reid, pushing for fast action on the stimulus bill, turned to a well-worn maxim: "We should not let the perfect be the enemy of the good." The bill the Senate is expected to send to a conference committee as soon as Tuesday includes provisions -- particularly the $69.8 billion one-year "patch" on the alternative minimum tax (AMT) -- that key economists and budget specialists say are less likely to have the maximum anti-recessionary impact than direct spending provisions calling for substantial purchases by all levels of government.