President Joe Biden’s approval rating dipped to the lowest point of his presidency in May, a new poll shows, with deepening pessimism emerging among members of his own Democratic Party.

Only 39% of U.S. adults approve of Biden’s performance as president, according to the poll from The Associated Press-NORC Center for Public Research, dipping from already negative ratings a month earlier.

Overall, only about 2 in 10 adults say the U.S. is heading in the right direction or the economy is good, both down from about 3 in 10 a month earlier. Those drops were concentrated among Democrats, with just 33% within the president’s party saying the country is headed in the right direction, down from 49% in April.

Biden’s approval dips to lowest of presidency: AP-NORC poll