Teamsters union members hold signs urging Gov. Gavin Newsom to sign Assembly Bill 316, which would require in-person human supervision of self-driving vehicles weighing over 10,000 pounds, at the state Capitol in Sacramento, Calif., on Tuesday. California lawmakers, union leaders and truck drivers are trying to steer Democratic Gov. Gavin Newsom toward signing into law a proposal that could save jobs as self-driving trucks are tested for their safety on the roads. Paul Kitagaki Jr./The Sacramento Bee via AP