The rally comes as Trump takes a victory lap.
Back home in North Dakota, Heitkamp's party focused on a self-described "grassroots" effort, according to party Communications Director Alex Rich, to share its "North Dakota First" message.
"I stressed the importance of nominating someone to the Supreme Court who is pragmatic, fair, compassionate, committed to justice, and above politics - traits that match Justice Kennedy and which I know are important to North Dakotans", she said.
Following the rally, President Trump will be spending his night in Milwaukee, Wisconsin.
President Donald Trump has claimed his supporters should be referred to as the "super elite" after last week claiming he was better than his "elite" opponents because he had more money and a bigger house. But his remarks, especially his attempts to tie Heitkamp to a Democratic effort to oppose any pick he sends to the Senate, show Trump believes the coming court tussle is a winning message for his party.
When called up to speak, Cramer thanked Trump for "not forgetting about us" in flyover country.
President Donald Trump set to hold a rally tonight in Fargo, North Dakota. As I said, if the President wants to meet with me, I'm ready to participate and advocate for North Dakota. "A vote for any Democrat is a vote for Schumer, Pelosi and Maxine - Maxine, she's a beauty". In doing so he took a narrative crafted by incumbent Senator Heidi Heitkamp, one which supposed that the President likes her more, and threw it in the trash.
The arena was filled with filled with red, white and blue apparel, with many pieces stitched with Trump's name or his campaign slogan, "Make America Great Again". Those supporters say they were disappointed to not see Trump's speech in person. Trump said, highlights the need for those in North Dakota and elsewhere to vote Republican come November.
Trump said he was happy that Pelosi and California Rep. Maxine Waters would remain the faces of the Democratic Party.
"And on these very important North Dakota values, you'll never have to wonder where I'll be", he said.
Trump said he was eying a replacement who would be on the court for 40 to 45 years, a chance to lock in another reliably conservative justice and give the high court a conservative majority for the foreseeable future.
"Political speeches are just that, but the next day, I'm ready to get to work", she said in the statement released late Thursday night. In recent weeks, he had frustrated Cramer with the appearance of friendly ties to Heitkamp, particularly after she was seated next to the president during the signing into law of a banking deregulation bill.