Attaching a Balanced Budget Amendment to the Boehner bill appears to be the Speaker's latest maneuver to get the GOP in line. It may well work in getting some kind of bill passed. But it won't survive the Senate. Lowry predicts:
Boehner passes; the requirements for the second tranche are weakened and/or wiped out in the Senate; the final deal passes in the House with help from Democrats. We get some cuts and a commission and what is, essentially, a debt increase past the election.
Translation: meep meep, motherfuckers.