The Post has post-argument analysis of the Citizens United case this morning.

The Supreme Court yesterday appeared ready once again to trim the reach of the McCain-Feingold campaign finance reform act, this time at the behest of a conservative group that produced a withering 90-minute political film called “Hillary: The Movie.”

And that was even before the government’s lawyer rattled the justices by asserting that Congress possessed the power — hypothetically — to ban some political books before an election.