President Obama on Saturday threatened to veto a bipartisan bill that would allow Congress to weigh in on any nuclear deal the administration reached with Iran.

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"The President has been clear that now is not the time for Congress to pass additional legislation on Iran," National Security Council spokeswoman Bernadette Meehan said in a statement to The Hill.

"If this bill is sent to the President, he will veto it. We are in the final weeks of an international negotiation. We should give our negotiators the best chance of success, rather than complicating their efforts," she added.

The threat comes after a handful of lawmakers introduced a measure requiring Obama to submit text of an agreement with Iran to Congress. It would also prohibit the White House from lifting Iranian sanctions for two months while Congress debated the deal.

“There are few national security priorities for our country more important than preventing Iran from obtaining a nuclear weapon and any agreement that seeks to do this must include Congress having a say on the front end," Foreign Relations Committee Chairman Bob Corker (R-Tenn.), one of the bill's cosponsors, said in a statement.

Corker introduced the measure along with Sens. Robert Menendez (D-N.J.), the committee ranking member; Lindsey Graham (R-S.C.); and Tim Kaine (D-Va.) on Friday.

It arrives just weeks before the administration is set to come to terms on a framework over Iran's nuclear program. Members of both parties have expressed concerns that the administration would concede too much to Iran ahead of the March 24 deadline.