statement released by his campaign, Mr Trump described Mr Priebus and Mr Bannon

'Truly an honour'

In a statement released by his campaign, Mr Trump described Mr Priebus and Mr Bannon as "highly qualified leaders who worked well together on our campaign and led us to a historic victory".

Mr Priebus, 44, acted as a bridge between Mr Trump and the Republican party establishment during the campaign.

He is close to House Speaker Paul Ryan, a fellow Wisconsinite, who could be instrumental in steering the new administration's legislative agenda.

Breitbart man

During the election race, Mr Bannon, 62, saw it as his aim to "bolster the business-like approach of Mr Trump's campaign".

A former naval officer, investment banker and Hollywood producer, Mr Bannon took over at Breitbart in 2012, when he promised to make it the "Huffington Post of the right".

Breitbart is linked to the alternative right movement - or alt-right - which tends to reject both left-wing ideology and mainstream conservatism.

The movement often emphasises free speech and the right to offend. Opponents call it racist, anti-Semitic and sexist.