And Americans’ view of the economy—which Trump repeatedly turned to as his metric for success during his first term—has also sunk. More than three-quarters of the country believe that the economy is less than stellar, with 45 percent of polled voters describing it as “not so good,” while another 31 percent said that it was “poor.”

Trump's approval rating is a key indicator of his political strength as he navigates his second term and prepares for future policy battles. A shift in his numbers could influence support from Republican lawmakers,