President Trump's job approval rating has dropped to a new low of 37 percent, according to the latest Gallup tracking poll.

Only 37 percent of respondents approve of the job the president is doing, compared to 58 percent who disapprove.

The daily results are based on interviews with about 1,500 adults. The margin of error is 3 percent.

The drop comes as Republicans pitch the GOP healthcare plan, seeking to rally members behind their proposal to repeal and replace ObamaCare.

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The president made a pitch for the plan last week, and Speaker Paul Ryan Paul Davis RyanAt indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates Peterson faces fight of his career in deep-red Minnesota district MORE (R-Wis.) on Sunday expressed optimism about the prospects of passing the GOP ObamaCare replacement plan.

It also comes after a federal judge in Hawaii last week issued a temporary restraining order against the president's revised travel ban.

During a rally in Tennessee this week, Trump vowed to fight the Hawaii judge's ruling.

"We're going to take our case as far as it needs to go, including all the way up to the Supreme Court,” Trump said.

“We're going to win,” he continued. “The danger is clear. The law is clear. The need for my executive order is clear."

A Fox News poll conducted earlier this month showed the president's job approval rating had dropped by 5 points since last month. According to that survey, 43 percent of voters approved of the job the president was doing compared to 51 percent who disapproved.