Iowa State Senator Brad Zaun is preparing to announce another bid for Congress, sources close to Zaun tell TheIowaRepublican.com. Zaun was the Republican nominee for Iowa’s Third Congressional District seat in 2010. The Urbandale native emerged from a crowded GOP primary field, but eventually lost to incumbent Leonard Boswell in a bitter general election battle. Last week, Zaun announced on his personal and “Zaun for Congress” Facebook pages that an announcement was pending after the New Year. “I hope each of you had a great Christmas! I will have some big news to announce after the first of the year...