U.S. officials say Iran has already stockpiled enough uranium to produce one nuclear weapon, said Rep. Ileana Ros-Lehtinen of Florida, top Republican on the Foreign Affairs Committee. International diplomacy has proved to be a mirage, she said. “we must use the limited time remaining to impose sanctions so painful that they should threaten the Iranian regime’s survival.”

Rep. Dennis Kucinich, D-Ohio, a leading critic of the bill, said it would antagonize the many Iranian people who oppose the Tehran government of President Mahmoud Ahmadinejad. “We’re telling the Iranian people, ‘we have feelings of friendship for you. we like you so much, but we’re going to cut off your home heating oil.”‘

“This will unify the Iranian people against us,” said Rep. Ron Paul, R-Texas.