And it's increasingly a Republican-led effort:
The sheriffs who joined the program were overwhelmingly small-town or suburban and Republican, Stateline found, though not all counties have partisan races for sheriff. The only urban counties to join were those encompassing Fort Worth, Texas, and Knoxville, Tennessee. None of the new sheriffs to join the program ran as a Democrat in the general election. There were no new 287(g) agreements with city police agencies, which generally aren’t elected positions and usually are not in charge of jails as are county sheriffs.
The expansion came so fast that it caused administrative problems; U.S. Immigrations and Customs Enforcement (ICE) didn’t hire enough new managers to oversee the new programs and train sheriff’s deputies, according to an Inspector General report in September.
Bolding mine, because that lack of training and oversight is a recipe for an authoritarian nightmare. The 287(g) program is supposed to be "incidental" in nature; local law enforcement are only supposed to check someone's immigration status *after* a suspect has been arrested for other crimes. In the absence of a manager to review and sign off on "charging documents" that provide the legal basis for initiating the deportation, the likelihood of racial profiling increases. And it also makes our streets more dangerous because it discourages the reporting of crimes, even violent ones: