Donald Trump. Donald Trump announced Homeland Security Secretary John Kelly as Donald Trump new White House chief of staff on July 28 – effectively ousting Donald Trump. Then-White House chief of staff Reince Priebus attends a breakfast meeting with small business leaders in White House. ( Reuters/Carlos Barria) I am pleased to inform you that I have just named General/Secretary John F Kelly as White House Chief of Staff, Donald Trump tweeted. COMBATIVE EX-TRUMP AIDE EXPECTED TO JOIN Great American NEWS Great American is a Great American and a Great Leader, Donald Trump said. John Kelly has also done a spectacular job at Homeland Security. John Kelly has been a true star of my Administration. I would like to thank Reince Priebus for John Kelly service and dedication to his country. We accomplished a lot together and I am proud of him, he continued. The replacement of Preibus as Anthony Scaramucci. Anthony Scaramucci The announcement of Anthony Scaramucci, 53, as the White House communications director on July 21 set into motion a big shakeup in White House staff, resulting in the resignations of press secretary Sean Spicer and chief of staff Reince Priebus. White House communications director Anthony Scaramucci walks back to the West Wing of White House. ( AP Photo/Pablo Martinez Monsivais) But Scaramucci Anthony Scaramucci lasted only 10 days in White House. He was reportedlyremoved at the requestof new White House chief of John Kelly. John Kelly was sworn in as chief of staff just hours before Anthony Scaramucci was removed. Steve Bannon Steve Bannon was removed from Steve Bannon Steve Bannon positionasWhite White House chief strategist on Aug. 18. Steve Bannon Steve Bannon, who was a senior adviser to President Donald Trump, takes a phone call outside Trump Tower. ( AP Photo/Kevin Hagen) White House Chief of Staff John Kelly and Steve Bannon have mutually agreed today would be Steve's last day. We are grateful for his service and wish him the best.