Steve Bannon, President Trump's chief strategist, will leave his position at the White House after eight months on the job, the White House said on Friday.

The announcement came on his last day in the administration, the White House noted, announcing that Trump and chief of staff John Kelly had jointly arrived at the decision. They decided his last day would be today, according to White House press secretary Sarah Sanders.

"White House Chief of Staff John Kelly and Steve Bannon have mutually agreed today would be Steve's last day," Sanders said. "We are grateful for his service and wish him the best."

Bannon's exit will cap off a period of upheaval for the West Wing that has already seen the ouster of Trump's chief of staff, press secretary, communications director, and several national security staffers.

As the former head of Breitbart, a fiery news outlet, Bannon had long drawn the ire of Democrats who viewed him as sympathetic to the "alt-right" movement. Calls for his resignation grew louder in the wake of racially motivated violence in Charlottesville, Va., over the weekend.

Kelly, who took over from Reince Priebus last month, bristled at Bannon's unorthodox style from the beginning, sources familiar with the situation have said. Kelly suspected Bannon was responsible for a series of negative stories about national security adviser H.R. McMaster, with whom Bannon had feuded over ideological differences.

Those sources have also said Bannon's position as chief strategist came with an ill-defined portfolio that likely left his job duties unclear to Kelly.

This week, Bannon broke a months-long media silence by giving four on-the-record interviews, in which he defended the president's stances on Confederate monument preservation.

Bannon's dedication to the populist platform that put Trump in the White House earned him the respect of conservatives on Capitol Hill and made him a beloved figure among Trump's supporters.

People close to Bannon had suggested in recent weeks that many of the president's allies would revolt if Trump decided to remove Bannon from the White House.

Beyond his close association with Trump's campaign promises, Bannon enjoys the personal support of several deep-pocketed Trump donors.

Robert Mercer and his daughter, Rebekah, funded Breitbart before pouring resources into Trump's campaign, and the Mercer family maintains a friendly relationship with Bannon. Sheldon Adelson, the Las Vegas billionaire and longtime Republican donor, is also close to Bannon personally, several sources have said.