New Hampshire Senate President Chuck Morse speaks to a reporter at the Statehouse, Jan. 4, 2017, in Concord, N.H.
Andrew Harnik/AP Photo

Bolduc has held the lead in public polling of the Republican primary, taking 43 percent support to 22 percent for Chuck Morse in recent public polling from the University of New Hampshire. Bolduc has leaned into Trump’s election conspiracy theories on the campaign trail, and he has stoked controversy with comments about Ukraine and China during the primary. Trump has notably steered clear from this primary battle, choosing not to endorse any candidate.

Despite being behind in polling and becoming the topic of a big ad war in the closing days of the primary, Morse’s team remains confident he can win the primary.

“Chuck Schumer can throw as many daggers as he wants,” Harvey said, dismissing the new Democratic ad.