WASHINGTON (AP) — Debate is coming up on a Senate bill that would let Congress review and potentially reject any Iran nuclear deal — and supporters of the measure must fend off some colleagues who want changes that could sink it.

Republican Sen. Lindsey Graham of South Carolina says "anybody who monkeys with this bill is going to run into a buzz saw."

The high-profile debate on Tuesday comes as negotiators from the U.S. and five other nations are trying to finalize a nuclear deal by the end of June.

A framework agreement would require Iran to curb its program in exchange for relief from economic sanctions.

Some Republicans want to amend the legislation to hold up that relief unless Iran stops sponsoring terrorism, recognizes Israel and allows inspections of its military sites.

(Story by: Deb Riechmann, The Associated Press)