Senate will be voting on Friday on an amendment to the National Defense Authorization Act (NDAA) which would block the White House from taking military action against Iran without congressional approval.

Senate Majority Leader Mitch McConnell announced on Wednesday that a deal has been made to vote on the amendment on Friday.

“We intend to stay in session this week to finish the NDAA bill and allow for a vote in relation to the Udall amendment. Senators should plan to vote on Friday on the Udall amendment,” McConnell said from the Senate floor, according to a report from The Hill. “Here’s the good news, the vote will start first thing in the morning and be held open into the afternoon to accommodate as many senators as possible.”

If passed, the amendment will block funding

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The amendment was introduced by Democrat Senators Tim Kaine and Tom Udall, but has gained some bipartisan support. It is unclear if they will be able to pull over the 13 Republican votes needed to pass it, however.

A similar amendment has also been introduced in the House by Democrat Congressman Ro Khanna and Republican Senator Matt Gaetz.

“This amendment affirms what President Trump knows and believes: unfocused, unconstitutional, unending wars in the Middle East make America weaker, not stronger,” Gaetz said in a statement. “Iran must be prevented from obtaining a nuclear weapon and threatening international peace, but Congress must resolve to ensure that any military action is carried out constitutionally.”