GUILDERLAND — As Republican Stephen R. Chesley, an attorney, gears up to challenge incumbent Guilderland town justice John W. Bailey, a Democrat, in the November elections, the two are vying for the Conservative party line in the June 25 primaries.

BERNE — Thirty years ago, Democrat Alan Zuk was a town justice, before he was the town’s supervisor for several terms and before he was appointed to the position in April this year. He will now face an election to keep the post.