The Senate hopeful argues that the name did not violate House ethics rules.
Kudlow had threatened to run against Sen. Richard Blumenthal.
John Fetterman plans to announce he will run against Republican Pat Toomey.
The Ohio Senate race is one of the most hotly contested race this cycle.
Rep. Ann Kirkpatrick (D-Ariz.) announced her support for the deal on Wednesday.
Despite rumors and encouragement from others, the Democrat says she will stay in the Senate.
“Wisconsin voters deserve to know the truth," the DSCC says in new ad.
Timothy Cama 09/01/15 10:00 AM EDT
The groups are attacking Republicans for voting against Obama's landmark climate rule.
“I may lose,” Kudlow acknowledged. “It’s a long-shot. I’m not a politician."
But LePage has previously walked back comments that he might challenge Sen. Angus King.