Three New 2020 Polls Show Joe Biden in Second Place

Democratic 2020 presidential candidate and former Vice President Joe Biden addresses the Presidential Forum at the NAACP's 110th National Convention at Cobo Center in Detroit, Michigan, on July 24, 2019. Jeff Kowalsky/AFP/Getty Images

While former Vice President Joe Biden remains on top in national 2020 polls, several new state polls show him in second place.

A CBS News/YouGov poll (pdf) of registered Democrat New Hampshire voters conducted from Aug. 28 to Sept. 4 showed 27 percent of respondents saying they'd vote for Sen. Elizabeth Warren (D-Mass.) if the Democratic primary in the state were held today.