There is only one primary in the region on Tuesday, and it's for Republicans to select a candidate for Probate Court Judge. The August 9th GOP primary is taking place in Bethel, Newtown, Ridgefield and Redding. Northern Fairfield County Probate Court Judge Joseph Egan is reaching the mandatory retirement age. Unaffiliated voters still have some time to enroll in the Republican party in order to vote August 9th. The cutoff for online and mail in voter registration is today. In person registration must be done by noon on Monday. There is a 90-day waiting period to switch parties.