The Republican National Committee on Thursday unveiled new rules for the party's 2016 presidential nominating process, but the changes are expected to protect the traditional schedule and status of early-voting states. The first nominating contests of the GOP presidential primary calendar are reserved for Iowa, New Hampshire, South Carolina and Nevada -- and all are scheduled for February. But the party is also proposing new, stiffer penalties to prevent other states from moving up their election schedules in an attempt to gain greater influence. The RNC has failed in the past to prevent state parties from moving up their primaries,...