FILE -- Sen. Elizabeth Warren (D-Mass.) speaks at the American University in Washington, Nov. 29, 2018. The question of whether to make use of or disavow super PACs is a pressing one for the many Democrats pondering a run for the presidency; Warren is likely to fall in the latter camp. (T.J. Kirkpatrick/The New York Times)
Sen. Elizabeth Warren speaks at American University in Washington, D.C.

Sen. Elizabeth Warren’s three big policy proposals may be gaining momentum in the House. But could the marijuana reform bill she introduced earlier this year actually pass in the Senate?

Sen. Cory Gardner, the Colorado Republican co-sponsoring the bill, says it could. And he’s trying to make it happen this week.

“The votes are there,” Gardner told Bloomberg in an interview Monday.

Senator Cory Gardner (R-CO) discusses his bill that would allow banking for the marijuana industry https://t.co/1JMHPdAEto pic.twitter.com/MSHjjlQt0u

— Bloomberg TV (@BloombergTV) December 17, 2018

The STATES Act, which Warren and Gardner introduced in June, would amend the Controlled Substances Act so that the federal prohibition on marijuana does not apply in states that have legalized the drug, like Colorado and Massachusetts. In effect, it would protect people acting in accordance with their own state laws from fear of federal…