Just four weeks into his term, 56 percent of Americans disapprove of the job Donald Trump is doing as President, according to a Gallup’s daily poll released Friday.

It’s the highest disapproval for Trump to date in the Gallup survey.

Gallup averages survey results from the previous three days. Through Thursday, the most recent numbers available, 56 percent of respondents disapproved of Trump’s performance, while just 38 percent approved.

That’s an 18 percent net drop since the poll started tracking the new President’s numbers. Trump started, on Jan. 22, with his approval and disapproval numbers tied at 45 percent, according to Gallup.

Gallup tracks the percentage of Americans who approve and disapprove of the President’s performance in office every day, based on telephone interviews with approximately 1,500 national adults, according to the company. The poll’s margin of error is 3 percentage points.