Spicer, Republican, worked as communications director after the departure of Mike Dubke.
Spicer has made a step back from public view after being subjected to Saturday Night Life ridicule for defending the President, and most of the recent briefings have been held by Sarah Huckabee Sanders, his deputy.
Trump's choice of Scaramucci was reportedly backed by his son-in-low and adviser Jared Kushner, daughter Ivanka and Wilbur Ross, the Commerce Secretary. White House chief of staff Reince Priebus opposed the move because of Scaramucci's insufficient political experience, the New York Times said.
Anthony Scaramucci, Founder and Co-Managing Partner at SkyBridge Capital, speaks during the opening remarks during the SALT conference in Las Vegas, Nevada, U.S. on May 17, 2017.
More about: #Sean-Spicer