One of President Donald Trump's top White House aides resigned Wednesday following allegations of domestic abuse leveled against him by his two ex-wives.
Staff secretary Rob Porter said in a written statement that allegations that became public this week are "outrageous" and "simply false." Porter said photos published of his former spouses — in which one appears to have a black eye — were "given to the media nearly 15 years ago and the reality behind them is nowhere close to what is being described."
Porter added in a written statement. "I have been transparent and truthful about these vile claims, but I will not further engage publicly with a coordinated smear campaign."
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Porter wrote in his statement that he would leave the White House after a transition period. However, a White House official confirmed to NBC News that he is leaving soon, potentially departing as early as Thursday.
Porter's former wives recounted physical, verbal and emotional abuse they say he subjected them to during their marriages.
Porter's first wife, Colbie Holderness, told the DailyMail.com that Porter choked and punched her during the five years they were husband and wife.
Porter's second wife, Jennifer Willoughby, also described for the DailyMail.com how Porter once dragged her naked and wet from the shower to yell at her. She filed a protective order against him. Stories published online by the DailyMail.com included photos of Holderness with a bruised eye socket that she said she suffered after Porter punched her in the face while on vacation in Italy.
Holderness and Willoughby each confirmed the accounts of their allegations to NBC News.
Washington Post national political reporter Beth Reinhard also spoke with the women and said on MSNBC Thursday that they both were contacted by the FBI in January 2017, "as you would expect for a background check of a high-level White House aide."
Reinhard said Holderness and Willoughby gave the FBI photos and documents in support of their claims against their ex-husband.
The White House confirmed Thursday earlier reports that Porter had only obtained an interim security clearance, though officials declined to comment beyond that.
"As has always been our policy, we do not comment on security clearances. Rob Porter has been effective in his role as staff secretary. The president and chief of staff have full confidence in his abilities and his performance," White House press secretary Sarah Huckabee Sanders said.
Porter, 40, has been credited with working with White House chief of staff John Kelly to control the flow of information to the president. His influence growing in recent months, Porter was often seen with Trump when the president traveled and as he signed legislation or proclamations. He helped craft Trump's well-received State of the Union address and was credited internally for helping bridge divides in a White House riven by rivalries and for helping more effectively roll out new policy.
The DailyMail.com published a statement from Kelly referring to Porter as a "man of true integrity and honor," adding, "I can't say enough good things about him."
"He is a friend, a confidante and a trusted professional. I am proud to serve alongside him," Kelly added.
However, a former white house official told NBC News that Kelly was aware of the allegations against Porter before the story broke Wednesday.
Though the well-liked Porter lost support within the White House once the photos came out, Kelly was still urging him to stay, according to a White House official who spoke on condition of anonymity to convey internal discussions.
Late Wednesday, Kelly released a statement claiming "new allegations" had swayed him.
"I was shocked by the new allegations released today against Rob Porter. There is no place for domestic violence in our society," Kelly said. " I stand by my previous comments of the Rob Porter that I have come to know since becoming Chief of Staff, and believe every individual deserves the right to defend their reputation." It's unclear what new allegations Kelly was referring to.
Vice President Mike Pence, asked about the resignation while traveling in Japan, told reporters he learned of it from news reports. "We'll comment on any issues affecting White House staff when we get back to Washington," he said.
Before joining the administration, Porter, a Harvard Law School graduate, spent nearly three years as chief of staff to longtime Utah Republican Sen. Orrin Hatch. Porter also worked for Republican Sens. Rob Portman of Ohio and Mike Lee of Utah.
Hatch released a statement that said he was "heartbroken" over the allegations and denounced domestic violence.
"In every interaction I've had with Rob, he has been courteous, professional, and respectful. My staff loved him and he was a trusted advisor," Hatch said. "I do not know the details of Rob's personal life. Domestic violence in any form is abhorrent and unacceptable."
Hatch said later Wednesday that he told Porter not to resign. "He should fight his way through this, and he’s got a lot to give to the administration and to all of us," Hatch told NBC News.
Porter, who joined the administration at its start in January 2017, said in his statement: "My commitment to public service speaks for itself. I have always put duty to country first and treated others with respect. I am deeply grateful for the opportunity to have served in the Trump Administration and will seek to ensure a smooth transition when I leave the White House."
Associated Press writer Jonathan Lemire contributed to this report.