For two months as he campaigned for Democratic National Committee chair, Ken Martin worked methodically through a call sheet of the committee’s 448 members, sometimes on the phone for as long as an hour,

The Democratic National Committee chose Mr. Martin, the leader of the Minnesota Democrats, to help oversee a demoralized national party split over its future and its response to President Trump.

Ken Martin, the head of the Minnesota Democratic-Farmer-Labor Party, was decisively elected chair of the Democratic National Committee on Saturday, beating a crowded field in the first round of voting to become the new face of a party struggling to find its footing during the second Trump administration.