Lawmakers on Capitol Hill are skeptical of the recent nuclear deal with Iran.
Leading Democrat and Republican senators are working on a bill to reinstate the full force of sanctions and more if Iran doesn't come through on its pledge to roll back its nuclear program.
Republican Sen. John McCain said the new agreement with the Islamic Republic could be dangerous.
"They have lied. They have cheated. They have deceived for years and years," McCain said.
Meanwhile, Americans held hostage by Iran in 1979 disagree on the merits of the deal.
Retired diplomat Victor Tomseth called it a positive step.
But Ret. Air Force Col. Thomas Schaefer said it's "foolishness," noting "I never found an Iranian leader I can trust."