California billionaire Tom Steyer said Wednesday he’s poised to “shock the world” next week with a good showing in the Nevada caucuses, which he says is necessary for him to eventually win a “wide open” race for the Democratic presidential nomination. Steyer insisted his campaign is “doing fine” despite failing to gain traction in Iowa or New Hampshire. But he acknowledged while kicking off a three-day Nevada bus tour Tuesday that he has to do “very well” at the Feb. 22 caucus in his neighboring state, then carry that momentum into South Carolina’s primary a week later.