Washington, April 15 (RHC)-- U.S. Secretary of State John Kerry has spent a second day urging lawmakers on Capitol Hill not to interfere in Iran nuclear talks, as senators prepare to vote on a bill that would give Congress authority to reject a final nuclear agreement with Tehran.

The top U.S. diplomat provided a comprehensive argument on Tuesday for why lawmakers should let the White House move ahead with the Iran deal without congressional involvement, House of Representatives Democratic lawmaker Jan Schakowsky told reporters.

Kerry, who is the main U.S. negotiator at the nuclear talks between the P5+1 group of countries and Iran, has repeatedly asked Congress to allow the negotiations to proceed without interference. But some hawkish members of Congress remain hostile to the Obama administration's call for lawmakers to step back. 

Iran and the P5+1 group -- the U.S., Britain, France, China, Russia and Germany -- reached a landmark framework agreement over Tehran’s nuclear program in Switzerland on April 2nd. The two sides will now work to draft a final accord by the end of June.

Last week, Israeli Prime Minister Benjamin Netanyahu warned against an emerging final nuclear agreement, expressing concern over an immediate removal of anti-Iran sanctions.