And there's plenty of competition. Essentially, the bill makes the entire state a 287(g) state without the supervision of Department of Homeland Security. The bill's constitutionality seems extremely dubious, but we'll have to wait on the courts and I feel certain that a suit will be filed within days of the governor signing. Here is a summary of the bill's provisions.
As an aside, I was struck by the "Profiles in Courage" passage from the LA Times coverage of the bill:
[Governor] Brewer, a Republican, has not taken a public stance on the bill. She replaced
Janet Napolitano, a Democrat who became President Obama's Homeland Security chief last year. Napolitano had vetoed similar bills in the past. Brewer faces a primary challenge next month; most observers expect her to sign the measure.
Some Republicans have privately complained about the bill, which Pearce has been pushing for several years, but were loath to vote against it in an election year.