Margin of error race between Harris-Trump in new poll conducted after Biden dropped

Vice President Kamala Harris and former President Donald Trump are locked in an extremely close contest, according to a new national poll conducted entirely after President Biden announced he was suspending his campaign and endorsing his vice president.

Trump, who was formally nominated last week at the Republican National Convention as the GOP's 2024 presidential nominee, stands at 46% support among registered voters in an NPR/PBS News/Marist Poll released on Tuesday.

Harris, who...