Senator Edward J. Markey (D-Mass.), member of the Commerce, Science, and Transportation Committee, wrote to Federal Communications Commission (FCC) Chairman Brendan Carr on Sunday calling on him to resign after his most recent social media post.

Carr threatened to revoke broadcasters’ licenses if they continue "fake news" coverage of the war with Iran.

“Your post on Saturday demonstrated your continued effort to turn the FCC into Trump’s personal speech police," he wrote.

"Your Saturday post is not an aberration. It is the latest and most dangerous step in a sustained campaign to use the FCC’s licensing authority as a weapon against broadcasters and journalists whose coverage displeases the Trump administration," he also wrote.

Markey argued that the FCC’s "credibility depends on its willingness to exercise its authority on the merits, not at the direction of the President, and not as an instrument of retribution against journalism."

He continued, writing, "You have once again shown that you are unwilling to maintain that independence and uphold your sworn oath to defend the U.S. Constitution, and I once again call on you to resign."