Friday, June 1 is the deadline to register to vote in the federal primary election later this month to decide who is on the ticket to fill late Congresswoman Louise Slaughter's seat.

Friday, June 1 is the deadline to register to vote in the federal primary election later this month to decide who is on the ticket to fill late Congresswoman Louise Slaughter's seat.

There are four Democratic candidates vying for the party nomination for the 25th Congressional District -- State Assembly Majority Leader Joe Morelle, Brighton Town Board Member Robin Wilt, former journalist Rachel Barnhart, and Rochester City Councilman Adam McFadden.

Only one candidate will have their name on the Democratic party line in the federal primary election on June 26.

Neurosurgeon James Maxwell has secured a spot on the ballot as the Republican nominee.

Rep. Slaughter represented the Rochester area in Congress since 1987. With such a big spot on the line, are officials are expecting more people to vote?

Thomas Ferrarese, the commissioner of elections for Monroe County, says voter registration is up this year and it could be because of this race. However, he doesn't think it will necessarily translate to a higher voter turnout.

"I'd love to say, "Oh my gosh, we're going to get 50 percent of people to turn out, or 25 percent,'" Ferrarese says. "But if I go with history, all the way back to 2010 and I look at some numbers...it really is hard to see those numbers get much bigger than 12 to 15 percent."

In 2010, Ferrarese says there were multiple primary elections and the highest turnout reached 16 percent.

Friday, June 1 is the last day to postmark a registration form for the federal primary and to register in person at the Board of Elections. You can also register to vote online through the state's DMV website.