BOSTON — U.S. Sen. Elizabeth Warren on Wednesday did little to dampen speculation about what a recent meeting with Vice President Joe Biden might mean for her role in the 2016 presidential election.

The state’s most high-profile Democrat also left the door open to potentially supporting a proposed ballot question that would legalize marijuana for recreational use.

“I’m open to it. I think we’ve learned more. A couple of states have legalized marijuana for recreational use,” Warren said, encouraging more scientific study on the plant and drug whose possession can earn offenders time in federal or state prison.

Massachusetts voters in 2008 decriminalized possession of less than an ounce, legalized use for medical purposes in 2012, and could be asked whether to legalize use for non-medical reasons in 2016. [Read more at Mass Live]