The Knox County Democrats need more time to find a candidate for the state Senate seat that represents most of Knox County and have found someone to go on the primary ballot to reserve a spot for a replacement candidate until summer.

Adrian Humphreys III has filed his intent with the Maine Commission on Governmental Ethics and Election Practices to run for the District 22 seat as a Democrat. The only other candidate is incumbent state Sen. Christopher Rector, R-Thomaston.

Rector is serving his first term in the Senate after three two-year terms in the Maine House.

District 22 covers all of Knox County except Friendship, Washington and Isle au Haut.

Humphreys, who has a mailing address in Rockport, said March 9 that he does not plan to campaign but is simply a placeholder to allow the party more time to find a candidate.

The deadline for party candidates to file nomination papers with the Maine Department of the Secretary of State to get on the June 8 primary ballot is March 15. Candidates not enrolled in any of the political parties have until June 1 to file nomination papers.

Humphreys said he plans to withdraw after the primary and then a county caucus will be held to select a successor for the fall election.

The party nominees and unenrolled candidates will then be on the Nov. 8 general election ballot.

With the nomination deadline less than a week away, there are no opponents for Rep. Edward Mazurek, D-Rockland, and Rep. Wes Richardson, R-Warren.