When Kristi Noem was pushed out of her job as the secretary of homeland security and replaced with Oklahoma’s GOP senator — and wannabe MMA fighter — Markwayne Mullin, the public was assured he would make all those pesky problems with Immigration and Customs Enforcement go away.House Speaker Mike Johnson, R-La., described the concentration camp-style immigrant detention centers and the killings of two American citizens during immigration raids as “a little hiccup” and promised a “course correction” under Mullin. The New York Times heralded Mullin’s “warmer and fuzzier tone” during his confirmation hearing as a “sign that the administration wants...