The D.N.C. Has a Primary Problem

As chairman of the Democratic National Committee, Jaime Harrison, a 47-year-old who rose to his position two years ago from statewide politics in South Carolina and whose profile has risen along with his state’s, has to try to play mediator between angered state Democrats and a White House that expects fealty from the national organization. For now, Harrison is sanguine about all of it. The New Hampshire situation. Biden’s advanced age….