President Biden is facing an alarming level of doubt from inside his own party, with 64 percent of Democratic voters saying they would prefer a new standard-bearer in the 2024 presidential campaign, according to a New York Times/Siena College poll, as voters nationwide have soured on his leadership, giving him a meager 33 percent job-approval rating. [cut] John Waldron, a 69-year-old registered Republican and retired machinist in Schenectady, N.Y., voted for Mr. Biden in 2020. Today, he said, he regrets it and plans to vote Republican in 2024. “I thought he was going to do something for this country, but...