SiriusXM said Tuesday that Stephen Bannon will no longer host Breitbart News's radio show, after Breitbart announced he was stepping down as its chairman.

"Breitbart News has decided to end its relationship with Stephen K. Bannon, therefore he will no longer host on SiriusXM since our programming agreement is with Breitbart News," SiriusXM said in a statement.

Bannon, 64, had rejoined Breitbart News's SiriusXM radio show as host in December. He departed from the White House, where he served as President Trump's chief strategist, in August.

Bannon announced he was leaving Breitbart News on Tuesday after making derogatory remarks about Trump's family to Michael Wolff, the author of the bestselling "Fire and Fury: Inside the Trump White House," which has dominated headlines since being released last week.

The populist firebrand became executive chairman of Breitbart News in 2012 following the sudden death of founder Andrew Breitbart, who died of a heart attack at age 43.

Bannon had broken with the president in backing Republican candidate Roy Moore in the Alabama primary earlier last year, and was later dealt a serious blow when Moore lost to Democrat Doug Jones in the general election in December.