Reince Priebus | KERA News

Reince Priebus

Updated at 8 p.m. ET

He rose from relative state-party obscurity and reached an unlikely pinnacle as the man responsible for the agenda of the president of the United States.

Now, Reince Priebus is out of that job as White House chief of staff in the most significant shake-up of the rocky Trump presidency.

President Trump announced on Twitter on Friday that Homeland Security Secretary John Kelly has been named to replace Priebus, who says he resigned Thursday.

The White House is admitting that it discussed with the FBI media reports that Trump campaign officials were in contact with Russian intelligence agents and that Chief of Staff Reince Priebus asked the FBI to publicly knock down the story.

FBI Director James Comey refused.

Less than a week after his election, Donald Trump has begun to fill out the team he plans to bring with him to the White House. The president-elect announced Sunday that he has selected Republican National Committee Chairman Reince Priebus to serve as chief of staff in his incoming administration.

In the same announcement, Priebus' appointment shared top billing with the news that Trump campaign CEO Stephen K. Bannon will serve as chief strategist and senior counselor to the president.

Shelley Kofler / KERA News

Republicans choosing the 2016 site for their national convention found out Thursday why Dallas is called “Big D."