S Department of Homeland Security, announced on Monday that he was stepping down, making him the latest senior Trump administration official to resign following last week's deadly mob attack on the U.

S Capitol.

Wolf did not specifically cite the assault that led to five deaths as the reason for his resignation, but said in a statement quote.

Unfortunately, this action is warranted by recent events, including the ongoing and meritless court rulings regarding the validity of my authority is acting secretary.

President Donald Trump withdrew Wolf's nomination to be permanent homeland security secretary last week.

On Thursday, Wolf released a statement urging the president to condemn the violence of the capital.

White House spokesman said the withdrawal occurred on Wednesday and was not related at all toe Wednesday's events.

Wolf's departure comes amid concern over security for President elect Joe Biden's inauguration.

Earlier on Monday, Washington D.

C Mayor Muriel Bowser said she sent a letter toe wolf calling for a fresh approach to security after what she called last week's unprecedented terrorist attack and asked Wolf to extend the national special security event period from Monday through January 24th Wolf said in a statement that he had instructed the Secret Service to begin national special security event operations for the inauguration, effective Wednesday the 13th instead of January 19th, as previously scheduled.

Wolf served more than a year in the acting capacity is Homeland Security chief, taking over from Kevin McHale Lienen, who was preceded by Kirsten Nielson, who was preceded by John Kelly, who left the post to become Trump's chief of staff, another role that saw significant turnover.

The DHS press office said Wolf would leave his post at midnight on Monday and that FEMA Administrator Pete Gainer will take over as the new acting secretary.