Sanders and Lee have teamed up before to push legislation asserting congressional oversight of military issues. They spearheaded a bipartisan war powers resolution to end US support for the military conflict in Yemen. The bill passed both the House and Senate but was vetoed by President Donald Trump.

In a joint statement to CNN, the two senators said that while they don’t agree about much, this is an issue where they have common ground.

“As United States Senators, we often disagree on many issues. But standing up for the Constitution is not about partisanship. The Founding Fathers were absolutely clear. They wanted to ensure that our country avoided needless conflict and they understood that presidential war-making would be harmful to our democracy,” they said in the statement.