Scott Meske, president of the Bismarck-Mandan Chamber of Commerce, said he's particularly interested to hear how Trump's tax reform plan would affect small businesses, which represent 85 percent of the chamber's members.
Trump, during a visit to North Dakota, listed his broad principles for tax reform to include simplifying the US tax code and providing tax relief to middle-class Americans.
Hoeven and Heitkamp are both expected to travel to North Dakota with Trump on Air Force One, and they have both welcomed the president's visit to their state.
Trump stuck to well-practiced talking points when reporters were invited in for a portion of the meeting, repeating admonitions that the tax code should be "as simple as possible" and that a tax cut would produce "millions of new jobs".
The president railed against the current tax code, calling it a "waste of time" and "waste of money".
Trump also reiterated his support for oil and coal industries by endorsing elimination of certain environmental regulations created under the Democratic Obama administration.
President Donald Trump is expected to tout North Dakota's energy and agriculture economy Wednesday as he speaks on tax reform from the Mandan Refinery with several members of his Cabinet in tow.
Tax Policy Center
He meets bipartisan House and Senate leadership at the White House for tax reform talks and then delivers remarks in North Dakota as part of a series of events prompting his tax cutting plan.
It is his second such speech in two weeks, following one he made in Missouri last week. And your senator, Claire McCaskill, she must do this for you.
TRUMP: "This is a major, major tax cut".
What do we know about Trump's tax plan so far? Heidi Heitkamp, is the second time in as many weeks that the president has used his travel to needle a vulnerable Democrat facing a tough re-election battle in 2018.
The Democratic senator is expected to face a hard challenge for reelection next year in a state Trump carried in 2016 by 36 percentage points, one of his biggest margins of victory. AP is the largest and most trusted source of independent news and information.
Trump's trip takes him to friendly territory: He won North Dakota by 36 points previous year and has championed policies that benefit its energy sector.
The White House says Republican Rep. Kevin Cramer will also be on the plane. The White House said Trump planned to mention Julie Ellingson, a fourth-generation rancher who is concerned about how the estate tax may affect her children when they inherit the operation.