California residents could get to vote on legal sports betting as soon as the 2020 ballot under an amendment presented to the legislature Thursday. But first, Sen. Bill Dodd (D-Napa) and Assemblyman Adam Gray (D-Merced) will need to unite the state’s powerful tribal operators behind the legislation.

 That’s no mean feat. California’s tribal operators have, generally speaking, opposed all recent efforts towards gambling expansion in the state, whether it be online poker or Gray’s sports betting bill of last year.