Conservative commentator Charles Krauthammer says President-elect Donald Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE has already lost any goodwill following his White House win.

“The shortest honeymoon on record is officially over,” he wrote in Thursday’s edition of his column.

"Normally, newly elected presidents enjoy a wave of goodwill that allows them to fly high at least through their first 100 days. Donald Trump has not been sworn in, and the honeymoon has already come and gone.”

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Krauthammer said Democrats “pushing one line after another to delegitimize the election” were one factor behind fading enthusiasm for Trump.

“First, [it is] the refusal of an unbending Left to accept the legitimacy of Trump’s victory,” he said.

Krauthammer said Trump had made matters worse, however, by seeking constant media attention.

“[Trump’s] need to dominate every news cycle feeds an almost compulsive tweet habit,” he said. "It has placed him just about continuously at the center of the national conversation, and not always to his benefit.”

Krauthammer added Trump had not improved some of the flaws from his at-times wild 2016 presidential bid.

“Nothing negative goes unanswered because, for Trump, an unanswered slight has the air of concession or surrender,” he said.

“Finally, it’s his chronic indiscipline, his jumping randomly from one subject to another without rhyme, reason or larger strategy.”

A Gallup poll released Friday found Trump has the lowest recorded approval rating of any president in the final days before first entering office.

Fifty-one percent of Americans disapprove of Trump before his Jan. 20 inauguration, while only 44 percent approve of him.