 The decision about whether Mr. Biden stays in the race may come down to raw data. In a new Wall Street Journal poll, former President Trump has opened up a six-point lead over President Biden among registered voters, the widest gap in that survey since 2021. Mr. Trump leads by nearly nine points among registered voters in a New York Times-Siena College poll. He's up by six points among likely voters, his largest lead since 2015. And Vice President Harris performs slightly better in a CNN poll.