Biden Offers a Big Hint on 2020

"Run, Joe, run," firefighters chanted at Joe Biden during a speech Tuesday. "Save it a little longer; I may need it in a few weeks. Be careful what you wish for," the former vice president told them, NPR reports. He hasn't announced whether he'll run for president, though the Hill reports that a Democratic member of the House understood Biden to have said in a phone call that he's in. Polls show Biden leading the Democratic field. The International Association of Fire Fighter's conference in Washington cheered Biden's hint as well as his speech. He covered union issues such as collective bargaining, pensions, and health care, but also topics that could be discussed in the 2020 race. "Today we seem to be at each other's throats. Extremism is on the rise in this country," Biden said. "Mean pettiness has overtaken our politics." (Barack Obama has quietly counseled Democratic hopefuls.)