Spicer, who said he was “Aware” that gas chambers were used during the Holocaust, later said he should have “Stayed focused” on Assad and asked people to forgive him for his “Mistake.”

“You had someone who was despicable as Hitler who didn’t even sink to using chemical weapons,” Spicer said during the briefing.

Spicer, asked later in the briefing for a clarification by a reporter about the comments that Hitler did not use chemical weapons, said: “I think when you come to sarin gas, he was not using the gas on his own people the same way that Assad is doing.”

The comment did not clear up the controversy, especially considering Spicer seemingly referred to concentration camps as “The Holocaust center.”

In a statement issued after the briefing, Spicer said “In no way was I trying to lessen the horrendous nature of the Holocaust.”

Steven Goldstein, executive director of the Anne Frank Center for Mutual Respect, noted the holiday in a statement that accused Spicer of engaging in “Holocaust denial.”

“Spicer’s statement is the most evil slur upon a group of people we have ever heard from a White House press secretary. Sean Spicer now lacks the integrity to serve as White House press secretary, and President Trump must fire him at once,” he said in a statement.