Former House Speaker Nancy Pelosi told President Joe Biden last week that she and other Democratic lawmakers worry that he’s dragging down the party, in an extraordinarily candid confrontation that came amid mounting pressure on Biden to end his reelection campaign. Pelosi also warned Biden that some Democratic lawmakers would start to grow louder in their griping about his political weaknesses, according to two people close to Pelosi. She urged the president to make a decision about stepping down soon. One Pelosi ally said it was possible she would press Biden publicly to give up his spot atop the Democratic...