Donald Trump is bristling at efforts to implement a more conventional presidential campaign strategy, and has expressed misgivings about the political guru behind them, Paul Manafort, for overstepping his bounds, multiple sources close to the campaign tell POLITICO.

Trump became upset late last week when he learned from media reports that Manafort privately told Republican leaders that the billionaire reality TV star was “projecting an image” for voters and would begin toning down his rhetoric, according to the sources. They said that Trump also expressed concern about Manafort bringing several former lobbying colleagues into the campaign, as first reported by POLITICO.

Now Trump is taking steps to return some authority to Manafort’s chief internal rival, campaign manager Corey Lewandowski…

But campaign insiders say it has become increasingly clear that Trump, for all his boasts about his ability to become more “presidential,” is simply unwilling or perhaps unable to follow through, and resents efforts to transform him.