A collection of coverage ahead of the likely vote:
The Post on how the President is trying to fight for his legacy.
Mother Jones on the stakes and potential future trade agreements.
L.A. Times on Democratic intra-party struggles. (Great picture on the web of Rep. Brad Sherman, who appears to be telling the President that what he wants is "inconceivable.")
A lot of the focus is on the politics of the bill rather than the policy, unfortunately. My favorable substantive commentary remains this op-ed from a few months back by Sen. Warren.