Hillary Rodham Clinton held a private, one-on-one meeting with Senator Elizabeth Warren in December at Mrs. Clinton’s Washington home, a move by the Democrats’ leading contender in 2016 to cultivate the increasingly influential senator and leader of the party’s economic populist movement.

The two met at Whitehaven, the Clintons’ Northwest Washington home, without aides and at Mrs. Clinton’s invitation.

Mrs. Clinton solicited policy ideas and suggestions from Ms. Warren, according to a Democrat briefed on the meeting, who called it “cordial and productive.” Mrs. Clinton, who has been seeking advice from a range of scholars, advocates and officials, did not ask Ms. Warren to consider endorsing her likely presidential candidacy. Aides to Mrs. Clinton did not immediately respond to requests for comment, and aides to Ms. Warren could not be reached…

The get-together represented a step toward relationship-building for two women who do not know each other well. And for Mrs. Clinton, it was a signal that she would prefer Ms. Warren’s counsel delivered in person, as a friendly insider, rather than on national television or in opinion articles. And for Ms. Warren, the meeting offered the opportunity to make clear what she believes are the most pressing national issues.