Debi Warner, a clinical psychologist from Littleton, is running for the seat being vacated by Sen. John Gallus, a Republican from Berlin.
So far Warner is the only Republican running.
Warner got her doctorate in clinical psychology from Bowling Green State University.
She’s been in private practice in Coos and Grafton Counties and previously worked for a non-profit family clinic as well as state agencies in New York and New Hampshire.
Gallus told NHPR he doesn’t plan to endorse any candidate until after the September primary.