by BBC News
Mr Spicer stepped down because he was unhappy with President Donald Trump’s appointment of a new communications director, according to reports.
Combative Wall Street financier Anthony Scaramucci has been picked for the role that Mr Spicer partially filled.
Mr Spicer’s press briefings were a cable news hit, but he withdrew from camera in recent weeks.
He told US media that the White House “could benefit from a clean slate”.
The shake-up comes amid several investigations into alleged Russian meddling in last year’s US presidential election and whether Mr Trump’s campaign team colluded with Moscow.
The New York Times reports that 45-year-old Mr Spicer “vehemently” disagreed with the appointment of Mr Scaramucci, which he believed to be a “major mistake”.