Apparently it has come to this: Some members of Congress believe they must stipulate by law that President Barack Obama must obey the law.

Obama has taken the law into his own hands, in direct violation of the Separation of Powers Doctrine, on matters ranging from Obamacare to international agreements on climate change. Now he is prepared to do that regarding a bad deal with Iran over that nation’s nuclear weapons program.

Many members of Congress, including both Democrats and Republicans, are worried Obama is ready to conclude an agreement that would do little, if anything, to limit Tehran’s ability to develop nuclear weapons. One thing on the lawmakers’ minds is that any treaty with another country must be ratified by the U.S. Senate. The White House appears intent on unilaterally finalizing a pact with Iran.

A bill in the Senate would attempt to remind Obama of his limits under the Constitution. It would allow the president to lift or alter any economic sanctions he has imposed on Iran.

But a part of the bill that Obama opposes fiercely would prohibit him for 60 days from taking any action on sanctions established by Congress.

Congress should not have to pass a law affirming, in effect, that when it passes another law the president is not permitted to override it. But Obama’s abuses have been so egregious that some lawmakers apparently believe such a reminder is necessary.

If such redundancy has become vital to reining in the president, Congress should approve the bill – by a veto-proof majority.