John Harwood, CNBC - I exchanged messages Tuesday evening with a longtime ally of Trump campaign manager Paul Manafort, whom I asked about who was calling the shots in the campaign. The response indicated that Manafort, a veteran of Republican politics brought in this spring for the transition from primaries to the general election, has lost control over his candidate. "Manafort not challenging (Trump) anymore," Manafort's ally wrote. "Mailing it in. Staff suicidal."
Political Wire - “Donald Trump aides and people close to his campaign are increasingly frustrated by his insistence on waging various fights that steer him off message,” CNN reports.
One knowledgeable Republican said that some of Trump’s campaign staff — even campaign manager Paul Manafort — “feel like they are wasting their time.”
“It has been relayed to Trump that he is losing what tenuous support he has in the party establishment, and that already skeptical donors are heading for the exits or telling the senior team can’t count on serious progress when he looks so toxic.”
NBC News - Republican National Committee Chairman Reince Priebus is "apoplectic" over Donald Trump's refusal to back House Speaker Paul Ryan or Sen. John McCain, a top Republican source said.
Priebus called several Trump staffers, including campaign manager Paul Manafort, to express his "extreme displeasure" with Trump's comments, the source with knowledge of the conversations told NBC News.
Trump, in an interview with The Washington Post published Tuesday, said of Ryan "I'm not quite there yet" — echoing language used by Ryan when he was reluctant to endorse Trump in May. Ryan eventually endorsed the GOP nominee. A spokesperson for Ryan said Tuesday neither Ryan nor anyone on his team sought an endorsement from Trump.