Gun-rights advocates are having trouble digesting a social-media post from a senior advisor to Gov. John Hickenlooper that compares the right to bear arms with the right to bear a ham sandwich. “’Constitutional rights,’” yes. But #gunrights? Isn’t that like #hamsandwichrights or #lightbulbrights or #bombrights or #humanrights…wait,” says the message from Max Potter, the governor’s senior media adviser, on Twitter. Former Rep. Tom Tancredo, who’s running for the Republican nomination for governor, said the tweet seems to claim that “there is no Second Amendment,” and called on the governor to explain the message. “The tweet implies that the governor looks...