With the June 10 primary just five weeks away, it’s time to turn our attention to the Democrats and Republicans who want to take U.S. Rep. Tom Allen’s seat in Congress.

Allen, who’s challenging Republican Sen. Susan Collins for her seat, has left an opening for new blood to step in. And on Tuesday night, most if not all of them will be in Augusta for a forum sponsored by the Maine Council of Senior Citizens-Alliance for Retired Americans.

The event will begin at 6 p.m. at the John Marvin Tower/Chateau Cushnoc Elderly Housing complex on Townsend Street in Augusta. Each candidate will have 10 minutes to speak, followed by a question and answer period.

John Carr, president of the alliance, said the forum is mostly for the senior citizens who live in the complex, although the public is allowed to attend. He said all of the candidates have said they plan to be there.

For the record, here’s who’s running in the Democratic primary: Michael Brennan of Portland, Adam Cote of Portland, Mark Lawrence of South Berwick, Ethan Strimling of Portland, Steve Meister of Winthrop, and Chellie Pingree of North Haven.

And for the Republicans, Charlie Summers of Scarborough faces Dean Scontras of Eliot.

The first district includes southern and coastal Maine, and stretching up to Augusta, Belgrade, Sidney, Vassalboro, Albion, and Monmouth.