It’s a mistake for House Speaker Paul Ryan to view voters concerned about election integrity as “nutty,” former Speaker Newt Gingrich said on Sunday.

“First of all, Paul Ryan is from Wisconsin, which actually runs honest elections. If Ryan would look at the history of Philadelphia, including four years ago and the intimidation … to suggest people [who] are concerned about honest elections are nutty I think is a mistake,” Gingrich said in an interview on ABC.