EXCLUSIVE — Republicans from Illinois are pushing their home state to comply with a House voter roll inquiry, arguing the state is not putting in “reasonable effort” to ensure election integrity in a new letter sent Monday.

Rep. Mary Miller (R-IL) led the letter to the state Board of Elections, with Reps. Darin LaHood (R-IL) and Mike Bost (R-IL) joining. The lawmakers wrote they are concerned the state counts mail-in ballots after Election Day, calling it a “controversial practice.” They also took issue with the state’s approach to maintaining voter lists, accusing many Illinois counties of not reporting removal data and of refusing to set statewide guidelines.