The U.S. Senate on Wednesday overwhelmingly approved an amendment that would strengthen sanctions against Russia as a punishment for its campaign to influence the 2016 U.S. presidential election.

The provision also would require congressional review if the White House decides to relax, suspend or terminate sanctions already in place.

The bipartisan agreement came in the form of an amendment to legislation the Senate already is considering on sanctions for Iran. That legislation is expected to have strong support when it goes to the full Senate, and then would have to pass the House of Representatives and be signed by President Donald Trump.

It strengthens existing sanctions targeting Russian energy projects, while imposing new sanctions on those involved in serious human rights abuses, supplying weapons to the Syrian government, carrying out malicious cyber activities and doing business with Russian intelligence and defense.