Twins John Robert Arendt (left) and his twin brother Robert John Arendt hold John Robert’s grandsons Brooks (left) and Westin during an interview after the twins competition on the first day of the Iowa State Fair on Thursday at the Iowa State Fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)

From left to right, Hayden DeCook, Victoriana Carlson, 10, and her sister Jacque, 17 brave the rain while enjoying the rides during the first day of the Iowa State Fair on Thursday at the Iowa State Fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)

Riders show out during the 4H horse show during the first day of the Iowa State Fair on Thursday at the fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)

Riders show off their horse show awards during the first day of the Iowa State Fair on Thursday at the fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)

Fairgoers enjoy the chairlifts during the first day of the Iowa State Fair on Thursday at the state fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)

Dylan Randolph, 3, of Ankeny beats the heat during the first day of the Iowa State Fair on Thursday at the Iowa State Fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)

Fairgoeers enjoy the afternoon sun on the Yo-Yo ride during the first day of the Iowa State Fair on Thursday at the Iowa State Fairgrounds in Des Moines. (Geoff Stellfox/The Gazette)