PARIS — A month and a half after entering the race for her husband’s Oxford County commissioner’s seat, Diane Jackson, 59, has withdrawn from the race.

Republican Committee Chairman Tim Turner of Buckfield said Thursday that Jackson confirmed she was withdrawing from the race last week.

A caucus will be held at 6 p.m. Tuesday, July 22, at the Paris Fire Station to choose a new candidate. Turner said he will ask for the caucus’ nomination.

Jackson first announced she was running for her husband, Caldwell Jackson’s, District 3 seat in May, after Caldwell announced he was taking a position with the state and was therefore not permitted to run. 

It appears she will join her husband working for the state; Jackson has been hired as the govenor’s account executive for the Office of Business Development, according to a clerk at the Maine Department of Economic and Community Development. 

The position bars her from the commissioners’ race, Turner said.

A call to Jackson’s house was not returned Thursday. 

District 3 includes the towns of Buckfield, Hebron, Oxford, Otisfield, Paris, West Paris, Woodstock, Hartford and Sumner.  

Jackson is the second county commissioner candidate to be elected in the June primaries and withdrawn from the race. Earlier this month, Democratic candidate Terry Hayes announced she was withdrawing to take a position with the campaign for gubernatorial candidate Eliot Cutler of Cape Elizabeth. 

Democrats chose Lee Holman of Hartford to replace her. 

Diane Jackson, who grew up in Otisfield and graduated from Oxford Hills High School in Paris, said previously that she served more than 10 years as a regional representative for former U.S. Sen. Olympia Snowe just prior to the senator’s retirement in 2012.

There, she managed one of Snowe’s six regional district offices, covering Oxford, Androscoggin and Franklin counties. 

Monday’s caucus is expected to be the second in three days for Republicans after state Rep. Roger Jackson of Oxford, Diane’s brother-in-law, announced Wednesday he will not seek re-election after he completes his first two-year term in the Legislature in November.