Focused on reporting the president’s actions and statements, the 13 journalists that make up the press pool can sometimes blend into the background.

The White House’s move to take control of which outlets participate in the press pool is a break from a century of tradition with the White House Correspondents’ Association.

The White House said on Tuesday it would decide which media organizations participate in the press pool that covers the president, wresting control away from the group of journalists that has done so for decades.