DENVER (AP) — Republicans in search of a way to oppose President Barack Obama's moves on immigration without alienating the nation's fast-growing population of Hispanic voters may find a playbook in Colorado. Democrats acknowledge the two Republicans benefited from a change in how they talk about immigration, departing from a bombastic approach that emphasizes border security and deportations. Earlier this year, some Colorado Republicans feared they were in for a repeat when Ken Buck, who as a county district attorney took aggressive action against immigrants living in the U.S.