Exclusive: Tim Clark and Ron Nehring, running California campaigns for Trump and Cruz respectively, advised rightwing tycoon Manuel Baldízon’s campaignThe two men hired by Donald Trump and Ted Cruz to spearhead their presidential campaigns in California are, for the moment, rivals in what could be the most important primary race of 2015.But four years ago, Tim Clark and Ron Nehring, who are running the California campaigns for Trump and Cruz respectively, worked as paid advisers to a campaign to elect a Guatemalan presidential candidate whose platform included a call for public executions.