Trump winds up for final pitch to Americans on tax overhaul

The administration sees this as a higher-altitude speech, saying the President has already addressed specific rate brackets in previous speeches.

Joined by about 120 people -- families and military personnel who have been invited -- the President will speak Tuesday afternoon from the Grand Foyer of the White House. Some young people will be among those invited, and the President will dedicate a "very significant portion" of his speech to the next generation that will be affected by tax reform. Trump will talk about some of the families present -- couples invited from states like Pennsylvania and Iowa -- and share their stories as examples of Americans who will benefit from the bill.

One administration official said Trump will make some news in the speech. "The President will share some information about the plan's impact on the American people that has not been shared with the American people before."

The senior administration officials spoke in broad terms about Trump's campaign trail promises to revive the American dream.

"This idea of economic opportunity for all is really going to be at the core of the President's closing argument," one said.

Look for lines like this previewed by one of the administration officials: "The middle class will no longer just be getting by. They're finally going to have the opportunity to get ahead, and that's what making America great again is all about."

The officials spent several minutes discrediting Marist and Quinnipiac polls that have shown that Americans view this tax measure as a benefiting the rich as "polls that are trying to manipulate public opinion."

There was little talk from the two officials about the prospects for the bill, but one of them did say they feel "very good about the direction the conference committee is heading."