White House press secretary Karoline Leavitt quickly dispatched "Good Morning America" host Michael Strahan’s objections to President Trump’s mandate for federal workers to return to the office.

Karoline Leavitt used her first briefing in the role to warn veteran reporters that they were increasingly irrelevant.

When Leavitt, 27, walks out into the James S. Brady Press Briefing Room on Tuesday, she'll be the youngest press secretary to do so, since Ronald Ziegler, who held the title in former President Ronald Reagan's White House at age 29.

Press secretary Karoline Leavitt said President Trump would open the briefing room to bloggers, podcasters and social-media influencers.

I hope you're ready to work very hard. I know we are. QUESTION: When you're up here speaking to the -- you yourself and your role as on advocating on behalf of the president or providing the unvarnished truth,

White House press secretary Karoline Leavitt made her briefing debut on Tuesday, where she sparred with reporters over a federal freeze on grants and made clear that President Donald Trump himself will be the administration's main messenger.

In her first press briefing, Leavitt started with a question from an Axios journalist and made several criticisms of the media.