BISMARCK, N.D. - Next year's Senate race in North Dakota could be one of the most expensive in history.
Incumbent Democrat Sen. Heidi Heitkamp has yet to formally announce she's running again, but she's already raised millions without an opponent.
Heitkamp has more than three million dollars on hand and that seems like a lot for someone who isn't running. According to Federal Election Commission... of that three million only 92 thousand has been raised in the state.
Heidi Heitkamp's war chest is over flowing, it looks like she's preparing for quite the fight.
Her race for re-election to the US Senate is more than a year away and right now she officially has no opponents.
Potentials opponents include...Representative Kevin Cramer, state representative Rick Becker, state Senator Tom Campbell and Board of Education member Kathleen Neset.
Becker says he's seriously considering a run and isn't afraid of the money.
"Whoever is going to be the candidate for the Republicans is going to see a war chest develop like that," Rep. Rick Becker, (R) Bismarck.
Meaning money flowing in from out of state, which it already has for Heitkamp.
According to data from the FEC, Heitkamp's total contributions from out of state for the second quarter of 2017 make up 98% of her money, only 2% or $41,000 came from in state contributions.
To compare Senator John Hoeven raised 92% from out of state contributions and 82% of Cramer's money was from out of state donors.
Heitkamp declined requests to be interviewed for this story. Cramer canceled our interview last minute citing "a long vote series," in the House Thursday. He's raised nearly $550,000 for his re-election to the House. John Hoeven is up for re-election in 2022 and has raised $45,000