U.S. Sen. Lamar Alexander (R-Tenn.) released the following statement on the announcement of a nuclear agreement with Iran:

"I am very skeptical, but I will carefully review this complex agreement, listen closely to the Senate debate, and vote based upon what I believe will help keep our country safe."

Earlier this year, Alexander voted in favor of bipartisan legislation introduced by Sen. Bob Corker (R-Tenn.) that would require Congress to review - and if necessary, reject - any final deal the Obama administration makes with Iran.

The Iran Nuclear Agreement Review Act of 2015 prevents the president from waiving sanctions on Iran or negotiating a final deal before Congress has a chance to vote on the agreement. Key provisions of the bill include: requiring the president to submit to Congress the full agreement; prohibiting the president from waiving sanctions on Iran while Congress is reviewing the agreement; giving Congress the ability to enact a joint resolution to prevent the president from waiving or suspending sanctions; requiring the president every 90 days to confirm that Iran is complying with the agreement; and requiring Iran to submit to more reporting requirements.