These are invitation-only events for AARP members, and the audience at each forum will be composed of 200 to 250 Iowans. Each candidate will have 25 minutes on stage to answer questions from both moderators and the audience.

“Older voters turn out in force in every election, so any candidate who wants to win in 2020 needs to focus on soaring prescription drug prices and other issues they care about,” said John Hishta, AARP senior vice president of campaigns.

“These forums will put candidates on the record, and older voters will be watching.”

The forums begin in Des Moines on July 15, with Cory Booker, John Hickenlooper, Amy Klobuchar and former Vice President Joe Biden.