It also drew an inflamed reaction, as people took to social media to note that Mr. Trump used similar arguments to defend Roy S. Moore, the Republican candidate who lost his bid for an Alabama Senate seat after being accused of child predation, and Bill O’Reilly, the disgraced TV personality who, along with his former employer, Fox News, paid tens of millions of dollars to settle sexual harassment claims.
Mr. Trump, critics noted, has not let due process prevent him from rushing to judgment in other cases. He has avidly promoted conspiracy theories, like those of the birther movement, whipped up his supporters at campaign rallies with chants of “lock her up” about Hillary Clinton, and demanded the death penalty for five young black and Latino men wrongly accused of assaulting and raping a white woman in Central Park.
For the #MeToo movement, which has spread into virtually every corner of American society — redressing a legacy of injustice even as it wrestles with questions like the dangers of a rush to judgment — Mr. Trump’s words were sure to make him, yet again, a lightning rod.
His apparent defense of his two aides — Rob Porter, the staff secretary, and David Sorensen, a speechwriter — ran counter to the White House’s portrayal of its response to the accusations of emotional and physical abuse leveled against them. Administration officials maintained that they acted decisively in each case.
But it was in keeping with the White House’s initially defensive reaction to the charges against Mr. Porter — a messy trail of conflicting statements that has left the West Wing in turmoil, with angry officials pointing fingers at one another.
The White House chief of staff, John F. Kelly, and the press secretary, Sarah Huckabee Sanders, staunchly defended Mr. Porter initially. Ms. Sanders said the president had “full confidence” in his performance, while Mr. Kelly described him as “a man of true integrity and honor.”
Yet the allegations against Mr. Porter and Mr. Sorensen were longstanding, well documented, and at least in Mr. Porter’s case, known to the White House for months, even as he held one of the West Wing’s most sensitive positions, channeling paperwork to the president.
One of Mr. Porter’s former wives, Jennifer Willoughby, obtained a restraining order against him, while the other, Colbie Holderness, presented a photograph of herself with a black eye, which she said came from being hit by Mr. Porter while the couple was on vacation in Italy.
The F.B.I. informed the White House of these charges, which held up Mr. Porter’s application for a permanent security clearance. Mr. Kelly has told his staff he ordered Mr. Porter to be fired 40 minutes after learning of the charges, an assertion that other officials disputed.
In the case of Mr. Sorensen, his former wife, Jessica Corbett, told F.B.I. agents conducting a background check on her husband that he had run over her foot while driving a car and extinguished a cigarette on her hand during a turbulent two-and-a-half-year marriage.
For his part, Mr. Trump generously praised Mr. Porter, telling reporters on Friday, “He did a very good job when he was in the White House, and we wish him well.” The president made no mention of the women Mr. Porter is said to have abused — a point several of the president’s critics noted.
“Look again at the photos of the face of Porter’s ex-wife after he assaulted her,” Representative Ted W. Lieu, a Democrat from California, said on Twitter. “Victims deserve due process as well.”
Mr. Trump has a history of coming to the defense of accused men. In addition to Mr. Moore and Mr. O’Reilly, he defended Roger Ailes, the chairman of Fox News, who resigned amid multiple allegations of misconduct; Corey Lewandowski, his former campaign manager, who was charged with battery after grabbing the arm of a female reporter; and Mike Tyson, the boxer who went to jail for raping an 18-year-old beauty queen.
Frequently, Mr. Trump notes that the charges are old, that they might not be true and that the accused has denied them.
“Forty years is a long time,” he said of allegations that Mr. Moore had molested girls as young as 14. “He’s run eight races, and this has never came up.”
In the case of Mr. Lewandowski, he said, “He’s a fine person, he’s a very good person. And I don’t want to destroy a man. If you let him go, you would destroy a man, destroy a family.”
Dozens of women have accused Mr. Trump himself of sexual harassment during his years as a real estate developer, reality-TV star and beauty pageant owner. He has consistently denied the charges, often in terms not unlike those he uses in defending other men.
“A lot of things get made up over the years,” he said in 2016, responding to an investigation by The New York Times that detailed what multiple women described as lewd comments and unwelcome advances. “I have always treated women with great respect. And women will tell you that.”
Mr. Trump’s call for due process does reflect a fear shared by others that the #MeToo movement has gained so much momentum that in some cases, men accused of misconduct are being judged too quickly or punished too severely for sexual behavior that falls into a gray area.
Yet Mr. Trump has been quick to judge in other instances. In the 1989 case of the Central Park jogger, Mr. Trump bought a full-page ad in newspapers calling for the five suspects to be given the death penalty. Even after the convictions against the men were dropped 13 years later, Mr. Trump insisted they were guilty.
“You falsely alleged rape by the #CentralParkFive even AFTER they were exonerated, but said nothing about due process for 5 black boys,” Cornell William Brooks, a former president of the N.A.A.C.P., said in a tweet. “For 2 white men accused of wife beating, you argue due process. Due process applies to more than @WhiteHouse staff or white men.”
To some critics, Mr. Trump’s defensive tone on Saturday was less a setback for the #MeToo movement than evidence of its success — a political and social tidal wave crashing on the doorstep of the White House.
“Trump is now tweeting to legitimize domestic violence,” said Amy Siskind, who publishes a weekly list on the web of how Mr. Trump is changing the country. “Like months ago when he defended a pedophile. The reason: a guilty conscience and knowing #MeToo is coming for him soon!”