President Joe Biden’s disapproval rating in December skyrocketed to 56% — the highest of his presidency, a new CNBC/Change Research poll found.

Biden’s disapproval rating, which had been 54% in early September and 49% in April, indicated voters are unhappy with the administration’s work regrading the economy and the COVID-19 pandemic, the CNBC/Change Research poll results showed.

As his disapproval rating rises, Biden’s approval rating continues to fall. The survey showed it’s at 44%, down from 46% in September and 51% in April.

The economy and rising inflation appear to be the primary reason voters are unhappy with Biden.

CNBC reported that the economy was the top priority for men and women, every age group, Latino and white voters, and those with and without college educations.

Black respondents named racism their chief priority, with the economy second.

Among the survey’s 1,895 respondents, 60% said they disapproved of Biden’s overall handling of the economy — a 6-point decline in approval from September.