Washington (CNN) Vice President Joe Biden met privately with Sen. Elizabeth Warren on Saturday in his residence at the Naval Observatory, CNN has learned, another sign he is seriously deciding whether to jump into the Democratic presidential race. Warren and Biden discussed economic policy during a meeting that lasted about two hours, a person familiar with the discussion told CNN, adding that the presidential campaign or Biden's future was not a particular focus of the discussion. Mrs. Warren was the dream presidential candidate of many progressives and still retains a loyal following among liberal activists. She told WBZ-TV, a Boston station, on Friday that no one “has been anointed” for the Democratic nomination. An aide to Mr. Biden said only that he returned at the “last minute” to Washington and then planned to travel back to his home state of Delaware, where he has gathered with relatives and advisers over the last week. Another source familiar with the meeting told CNN that Warren went to the meeting at Biden's request. JUST WATCHED CNN/ORC Poll: Majority of Democrats support Biden run Replay More Videos ... MUST WATCH CNN/ORC Poll: Majority of Democrats support Biden run 05:52 
 
 Biden is increasingly weighing whether to challenge Hillary Clinton and other Democratic candidates for the party's presidential nomination. Mrs. Clinton has also seen her personal favorability ratings dip amid questions about her use of a private email server during her time at the State Department, and Mr. Biden’s allies are watching to see what happens with that issue as he weighs his decision, which may not come until well into September.
– In what's being called the biggest indication that he's considering jumping into an already crowded presidential race, Joe Biden invited lefty darling Elizabeth Warren over to his DC residence for a lengthy and cozy lunch yesterday, reports CNN. The two talked economic policy and the Democratic and Republican primaries, and though Biden made clear he's considering a run, the New York Times notes that he did not directly ask Warren's support. Warren, who eschewed a run of her own, has yet to back any candidate, Friday telling WBZ in Boston that "I don't think anyone has been anointed." The Times notes that Warren and Hillary Clinton "are not natural allies" and have crossed swords often. Biden is expected to make a decision within a month.