I don't know why Paul voted against it but I probably would have voted against it too since it specifically takes the military option off the table and for its reliance on international bodies.
But that's just me. I mean did you expect Lantos to write a bill that actually DID something against Iran?
A complete statement by Paul for why he voted against the bill was posted early in the thread by Freeper SJackson.
Paul said among other things that he was afraid the resolution was a forerunner or pretext for war with Iran (which Paul has repeatedly spoken against...he thinks we should leave that part of the world and try to get along with Iran...and don’t ask me to prove that with a quote. I have heard him say it in debates and I understand he has said it in interviews and other venues, but I’m not going to research it for you).
You say you would vote no because it took the military option off the table.
DUH.