President-elect Donald Trump has chosen Republican National Committee Chairman Reince Priebus, the establishment favorite and a low-key party insider, to serve as his White House chief of staff, CNN quoted sources as saying on Sunday.

The choice of Priebus, a loyal campaign ally to Trump who has close ties with House of Representatives Speaker Paul Ryan, signaled a willingness to work with Ryan and the Republican-led Congress to get his agenda passed.

The other front-runner for the job had been Stephen Bannon, Trump's campaign chairman and former head of the conservative Breitbart News.