Republican presidential candidate Donald Trump has overhauled his election campaign team for the second time in two months, bringing in a new manager and CEO.
Pollster Kellyanne Conway becomes campaign manager and Stephen Bannon of Breitbart News the CEO. Paul Manafort remains as campaign chairman.
Mr Trump told AP the new leaders were "terrific people... they're champs".
Mr Trump has seen his poll ratings slip since the party conventions last month.
He trails Democratic Party candidate Hillary Clinton both nationally and in key battleground states.
'I don't want to change'
The latest shake-up comes just 82 days before the election.
Although Mr Manafort stays in his job, analysts say the new appointments represent a demotion.
Speaking to Associated Press news agency about Mr Bannon and Ms Conway, Mr Trump said: "I've known both of them for a long time. They're terrific people, they're winners, they're champs, and we need to win it."
AP said the details of the new hierarchy were hammered out at a lengthy senior staff meeting at Trump Tower on Tuesday and that more senior appointments were expected in the coming days.
Mr Trump has faced calls from some Republicans to tone down his fiery rhetoric, in the wake of a number of controversial comments in the past two weeks and the subsequent drop in poll ratings.
But Mr Trump appears to want to stand by the campaign style that won him the Republican nomination.
He said on Tuesday: "You know, I am who I am. It's me. I don't want to change.
"Everyone talks about, 'Oh, well you're going to pivot, you're going to.' I don't want to pivot. I mean, you have to be you. If you start pivoting, you're not being honest with people."