Chad Wolf

Wolf is the latest senior Trump administration official to resign following last week's deadly mob attack on the U.S. Capitol.

"What transpired yesterday was tragic and sickening."

Spivey explained why DHS believes Wolf should not testify.

The instruction had come to Wolf from White House national security adviser Robert O'Brien, Murphy cited Wolf as saying.

Wolf also attributed violence to both "white supremacist extremists" and "anarchist extremists."

Wolf stands by his actions taken in Portland.

Wolf caused an uproar with his deployment of federal agents to quell unrest in Portland.

Wolf is urging Wheeler to agree to federal intervention for protests and riots.

"It was completely legitimate."

Swalwell blasts the RNC

The announcement comes after the U.S. Government Accountability Office (GAO) found earlier this month that Wolf's acting appointment did not follow processes.

"That’s not what we do at the Department of Homeland Security."

The GAO found that the department did not follow the proper chain of succession.

"In no way are we doing anything on peaceful protests."

"In no way does the acting secretary condone this practice and he has immediately ordered an enquiry into the matter."

Trump announces a surge in federal agents.

"This is a matter of utmost urgency."

"DHS is answering the President’s call to use our law enforcement personnel across the country to protect our historic landmarks."

"Today we are going to start waiving those for procurement regulations and laws."