Jim: He did vote for the 9/14/2001 AUMF, but it’s worth remembering that the Taliban and Afghanistan weren’t mentioned by name in that legislation:

That the President is authorized to use all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, or harbored such organizations or persons, in order to prevent any future acts of international terrorism against the United States by such nations, organizations or persons.

So Paul did agree that some military response to 9/11 was appropriate — but he has also repeatedly implied that he has a problem with the war in Afghanistan. Perhaps someone should ask him exactly what he thinks would have been a preferable course of action.