Tying himself to Republican presidential frontrunner Donald Trump’s coattails, state Rep. Matt Gaetz announced his candidacy Monday for an open Panhandle congressional seat with an announcement blasting illegal immigrants, Muslim terrorists and the national debt. Gaetz, a Fort Walton Beach Republican elected to the state House in 2010, had been in a heated contest for a state Senate seat held by his father, Don, a former Senate president forced out of office this fall due to term limits. “Washington’s failures have left the American people with trillions in debt, illegal immigrants sucking us dry, and attacks from Muslim terrorists rising....