The buck stopped with Richard Schmidt while Clarke was out campaigning for Donald Trump, critics say.
"Get off God’s throne, submit yourself to that person and love that person,” acting Sheriff Richard Schmidt said on a religious podcast.
Terrill Thomas died of "profound dehydration" in 2016 after guards cut off his water supply for a week.
"Let's have a ball and build a wall!" says a promo for the Montana event.
Critics have pushed the company to reprimand Donald Trump for his threatening tweets about nuclear attacks.
The former Milwaukee sheriff resumed tweeting after deleting messages promoting violence against the news media.
Feds dropped their case against him in May, but Milwaukee investigators determined he had abused his authority, the filing reveals.
The tough-talking Milwaukee County sheriff came under scrutiny for troubling deaths in his jail.
Terrill Thomas died of “profound dehydration” inside Milwaukee County Jail.
Clarke is reportedly being considered for a DHS post under President Donald Trump.