Washington (CNN) President Donald Trump said Monday he favored efforts by a bipartisan group of lawmakers to create term limits for Congress.

"I recently had a terrific meeting with a bipartisan group of freshman lawmakers who feel very strongly in favor of Congressional term limits," he tweeted . "I gave them my full support and endorsement for their efforts. #DrainTheSwamp."

I recently had a terrific meeting with a bipartisan group of freshman lawmakers who feel very strongly in favor of Congressional term limits. I gave them my full support and endorsement for their efforts. #DrainTheSwamp — Donald J. Trump (@realDonaldTrump) April 30, 2018

The group of first-term House members -- both Republican and Democrat -- met with the President on Wednesday to discuss their idea to cap the number of years that members of Congress can serve. It's a common reform proposal made by politicians but has yet to gain much traction.

Imposing term limits would require a constitutional amendment, a rare and difficult proposal that would need approval from two-thirds of the House and Senate, or two-thirds of state legislatures at a convention. It would then need to be ratified by the states.

While members of the bipartisan group have already introduced bills calling for term limits, Rep. Mike Gallagher, a Republican from Wisconsin, said they plan to merge their bills to create one united effort.

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