U.S. Sen. Elizabeth Warren is pledging to serve out her full six-year term and not run for president in 2016.

Warren has repeatedly denied she's interested in campaigning for the White House, but liberal Democratic activists have continued to speculate about a possible Warren campaign.

Speaking to reporters in Boston on Wednesday, Warren vowed to serve out the remainder of her term. She's currently in her first year.

The Massachusetts Democrat said she is working as hard as she can to be the best possible senator she can be and to fight for the issues she promised during her campaign last year against former Republican Sen. Scott Brown.

Warren said those issues include holding banks and Wall Street accountable and fighting to help rebuild the nation's middle class.