A sample from Ron Paul:
…why don't we try to see it from the other perspective – how would we react if we couldn’t import something? What if China or Russia or somebody came in and said: 'You cannot import certain things, or we’re going to prohibit you from trading?' The American people wouldn’t like that very much, and yet we too causally do that with others.Read a transcript here.
But, in principle, it’s not quite like a shooting war, but it is a war. I mean it is something that’s used in an active war, and the ultimate of is a blockade – but sanctions is a form of a blockade. Sanctions, 'you can’t do this, you can’t do that,' and I think it only leads to escalation, and the countries that had sanctions…The sanctions against Iran have been on there for a long time, and on Cuba – but the leaders never suffer. The people suffer, in both countries, so this is the reason I think that sanctions in principle are wrong.