Last month, Trump personally thanked Heitkamp and shook her hand during a bill signing at the White House.
The close relationship between Trump and Heitkamp has also put Cramer at odds with a key member of Trump’s administration.
During a radio interview last month, Cramer took aim at Marc Short, the White House director of legislative affairs, for inviting Heitkamp to the bill signing.
According the Post, Cramer contacted White House chief of staff John Kelly on June 1 to discuss his issues.
He promised me he would,” Cramer told the Post.