The Iowa Republican Party and Fox News Channel announced today plans for a Dec. 4 debate of the GOP presidential campaigns in Des Moines. The Tuesday evening event is scheduled for Hy-Vee Hall in Des Moines and comes as the race to the Jan. 3 caucuses enters its final month. It was unclear who would attend, although only those candidates who had support of at least 5 percent of those surveyed in recent national polls or The Des Moines Register’s Iowa Poll are invited, Iowa GOP officials said. That would include former Arkansas Gov. Mike Huckabee, former New York Mayor...