Trump's approval rating stable at 45 percent

Most Americans surveyed in a Hill-HarrisX poll released Wednesday disapprove of the job that President TrumpDonald John TrumpNASA exec leading moon mission quits weeks after appointment The Hill's Morning Report — After contentious week, Trump heads for Japan Frustration boils over with Senate's 'legislative graveyard' MORE is doing, but he has not lost any ground recently.

Forty-five percent of registered voters in the March 18-19 survey said they approved of how Trump is conducting his official duties. Fifty-five percent disapproved.

Trump's job approval rating has been quite stable in recent weeks. He received the same ratings during the previous Hill-HarrisX surveys conducted on March 5-6 and Feb. 17-18. While the president has not lost any support, he has also not gained any, suggesting that the public has settled into its opinions about Trump, despite his recent remarks about immigrants "invading" the United States and insulting the late Sen. John McCainJohn Sidney McCainMeghan McCain on Pelosi-Trump feud: 'Put this crap aside' and 'work together for America' Meghan McCain says Ben Carson should be developing brain cancer treatment, not working at HUD Graham urges Trump not to abandon infrastructure talks with Democrats MORE (R-Ariz.), which angered many of his critics.

"I guess if the Mueller report came out and it said 'we absolutely found nothing, anywhere that was negative,' I'm not sure that would even do a whole lot," Lee Miringoff, the director of the Marist Poll, told Hill.TV on Wednesday, referring to special counsel Robert MuellerRobert (Bob) Swan MuellerGraham: Mueller investigation a 'political rectal exam' House progressive: Pelosi 'has it right' on impeachment Democrats talk subpoena for Mueller MORE's investigation.

"We're in a polarized era that didn't start with Donald Trump and Hillary ClintonHillary Diane Rodham ClintonFrustration boils over with Senate's 'legislative graveyard' Poll: Nearly half of Clinton's former supporters back Biden Harris readies a Phase 2 as she seeks to rejuvenate campaign MORE, we've been going that way since the early 90s," Miringoff added. "There's very few people on the fence and when it comes to Donald Trump, there's even fewer."

Younger voters gave Trump his lowest marks in the latest poll, with 61 percent disapproving of his presidential performance and only 39 percent approving.

Republicans continue to give the president strong support with 82 percent approving of him and only 18 percent disapproving. Those numbers were almost the exact inverse of Democrats' views. Eighty-three percent of Democratic respondents said they disapproved of Trump while 17 percent viewed him positively.

Independent voters were mostly negative about Trump's job performance, but not by as significant of a margin as Democrats. Sixty percent said they disapproved of Trump's official conduct while 40 percent approved.

—Matthew Sheffield