Trump's early policies have favored rollback and dismantling of government regulations. These changes amounted to a near-total rollback of New Deal market regulation. "I'd institute a policy that I call 'rogue state rollback,'" McCain said. He favors a Balanced Budget Amendment and a rollback of the Bush tax cuts. He rejected containment of the Soviet Union and called for a crusade to rollback communism. This is a legal requirement in Switzerland to prevent "rollback" when starting from standstill. It made the rollback of global Communist expansion a high priority. Republican spokesman John Foster Dulles took the lead in promoting a rollback policy. The worm gear carries the differential gearing, which protects the vehicle against rollback. Weinberger took the lead in implementing a rollback strategy against Soviet communism. Nearby continental collisions have an effect on slab rollback. Seismic tomography provides evidence for slab rollback. The age of the subducting plates does not have any effect on slab rollback. In a case of a rollback, the magnetic brakes retard the train. Several forces are involved in the process of slab rollback.