Republican National Committee (RNC) Chairman Reince Priebus predicted on Tuesday that Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE could catch Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE in the polls by Labor Day.

"I think what you are seeing on the campaign is a continuation of a good couple of weeks that Donald Trump has had," he told reporters on a conference call, noting the Republican presidential nominee's "prepared, mature comments on the campaign trail."

"It's going to be important for us and for Donald Trump to continue down this measured path that he's on and if he does that, I think he's going to be tied or ahead at or just after Labor Day."

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Trump has been on a downward trend at the polls — he led Clinton, the Democratic nominee, in the RealClearPolitics national polling average briefly at the end of July but now sits 6 points down

Priebus gave high marks to the Trump campaign's direction, just less than a week after the billionaire brought in Breitbart News executive Steve Bannon as campaign CEO and elevated pollster Kellyanne Conway to the campaign manager position. The RNC chairman said that the campaign and the party have been working together very well over the past few weeks.

He also said that he expects Trump to clear up his stance on immigration soon. Reports from a weekend meeting with a Hispanic advisory group suggested the Republican nominee could soften his stance on deporting all 11 million undocumented immigrants. His campaign has pushed back against that assertion but postponed an immigration-themed speech originally scheduled for this week.

"I would suspect he's going to clear up any of these questions very shortly," Priebus said.

"I'm looking forward to those remarks, I know he is working on them and I think he is going to do what he said he's going to do — he's going to be fair, be tough, and be humane. Those are some pretty good principles for us to look to when dealing with this subject."