But his suggestion in private that he would be willing to step down if the president wanted him to reflected the degree to which the scandal surrounding Porter has engulfed the White House, touching off a bitter round of recriminations that could result in a shake-up at the highest levels.
Calling for "due process", US President Donald Trump on Saturday said that people's lives are being shattered and destroyed by a mere allegation, in the wake of the resignations of two White House aides after their ex-wives accused them of domestic abuse.
But later in the day, the White House dealt far more aggressively with another allegation of abuse. "It suggests that what we really need to worry about is how these allegations will impact the man who is accused".
The departure of Sorensen, who worked under Senior Policy Adviser Stephen Miller, came two days after Trump's staff secretary Rob Porter quit over allegations of abuse from two former wives. It is obviously a very tough time for him. "He's of Mexican heritage, and he's very proud of it, as I am of where I come from". But in my home, the abuse was insidious. "When I tried to get help, I was counseled to consider carefully how what I said might affect his career". I'm trying to keep business out of Mexico.
Corbett said several of the incidents involved alcohol and acknowledged that she slapped Sorensen a number of times after he called her a vulgar term. And he is deeply troubled and angry and violent. I think it's a very special time, a lot of things are coming out and I think that's good for our society and I think it's very, very good for women and I'm very happy a lot of these things are coming out.
"There's a lot going on behind the scenes in the White House - a big scramble to try and cover this up, or at least mitigate the situation, because they know it's a mess right now", Gabriel Debendetti, of Politico, said.
The president said he had only "recently" learned of the allegations against his former aide and was surprised.
Porter's first wife, Colbie Holderness alleged that he had choked and punched her through their five years of marriage. He said 40 years ago this did not happen.
On Friday, White House speechwriter David Sorensen resigned as The Washington Post and other media outlets - including Capitol Hill Blue - zeroed in on his record of abuse of wife Elise Viebeck, who told the Federal Bureau of Investigation a harrowing story about physical abuse.
In a lengthy statement, Sorensen said he had "never committed violence of any kind against any woman in my entire life".
DailyMail.com is not identifying the girlfriend because she is a victim of domestic abuse accusations.
Like this story? Share it with a friend! She helped draft a news statement on Air Force One, partly at the direction of the president, that misrepresented the objective of Donald Trump Jr.'s meeting with a Russian lawyer during the campaign, according to multiple administration officials. The family later hired her away to work exclusively for them, furnishing her with responsibilities that included working on Ivanka Trump's fashion line. In both cases, the aides seemed to be anxious that such misleading actions could do irreparable damage - for Trump with the Russian Federation investigation and for Kelly with his and the White House's credibility. Yet she continued to date him and did not tell the president about those allegations, White House officials said.