I don't see anything in the article that says anything about immigration. From the info provided, this is about suspicious behavior ID'ed via ALPR, and they don't specify suspicious of what. That seems very broad and something a reasonable person would expect many people of all parties to be wary of, not just people of one party.
Where does it say immigration? You know USBP is bigger than immigration right? Drugs, weapons, currency, illegal goods, etc. Even the largest cateogry of enforcement activity, illegal entry/removal - is itself much bigger than "immigration" which I take it to be people who want to live in the US or seek asylum.
Within illegal entry you have:
Terror watchlist
Recycling deportees (commuting to/from construction job sites in Phoenix or coming from Tijuana to do sex work in US)
Ultralight pilots dropping meth in fields
Smuggled minors (custody disputes)
Chinese nationals on the run from China
Mexican wildlife/hunting violators
Archaeological and horticultural looters stealing from Sonora Desert
Dryback US citizens pretending to be aliens to get a free ride on ICE flights to Houston
US citizen gotaways
