What started as a politician sharing his plan for handling Immigration and Customs Enforcement soon turned into a high-profile clash between billionaires amid California's race for governor. Billionaire climate activist Tom Steyer - one of many Democratic candidates jockeying for position after Eric Swalwell dropped out of the race and resigned from Congress amid an escalating s***** misconduct scandal - found himself at the center of controversy after vowing to go after ICE if elected.