The new White House chief of staff John Kelly became the latest member of the Trump White House to grace the cover of Time magazine, which proclaimed the retired Marine general "Trump's last best hope."

Kelly left his post as secretary of Homeland Security to take over for former White House chief of staff Reince Priebus late last month in a shake up of the West Wing.

Almost immediately, Kelly began making changes, according to Time. He fired former White House communications director Anthony Scaramucci, and closed the door to the Oval Office.

The retired general also instilled a new hierarchy at the White House: "Country, president, self," he told staff at a meeting at the Eisenhower Executive Office Building after taking over as chief of staff.

Many hope Kelly will be able to instill disciple and order in a White House that has thus far been chaotic, and he joins several former generals — Defense Secretary Jim Mattis and national security adviser H.R. McMaster — who are currently serving in top roles within the Trump administration.

According to Time, Mattis, McMaster, Chairman of the Joint Chiefs of Staff Gen. Joseph Dunford, also a Marine, and Secretary of State Rex Tillerson all worked to convince Kelly to take the job as White House chief of staff after they worried about the "conduct of foreign policy."

But it wasn't until Trump asked Kelly for the third time to take the post that he accepted.

Kelly joins the ranks of several other West Wing staffers featured on the cover of Time this year, including Steve Bannon, White House chief strategist, and Jared Kushner, the president's son-in-law and a senior adviser to Trump. Donald Trump Jr., Trump's oldest son, was also on the cover last month, as was former FBI Director Robert Mueller, who is leading the Justice Department's probe into Russian meddling in the 2016 election.