After six months, White House Chief of Staff Reince Priebus is fired. 

President Donald Trump made the announcement on Twitter Friday afternoon. 

I am pleased to inform you that I have just named General/Secretary John F Kelly as White House Chief of Staff. He is a Great American....

— Donald J. Trump (@realDonaldTrump) July 28, 2017

...and a Great Leader. John has also done a spectacular job at Homeland Security. He has been a true star of my Administration

— Donald J. Trump (@realDonaldTrump) July 28, 2017

I would like to thank Reince Priebus for his service and dedication to his country. We accomplished a lot together and I am proud of him!

— Donald J. Trump (@realDonaldTrump) July 28, 2017

Reports surfaced earlier this week that Priebus had been isolated within the White House in recent months. 

DHS Sec. John Kelly will succeed Priebus as chief of staff.