Republican presidential candidate and former U.S. Vice President Mike Pence sits down with NewsNation anchor Leland Vittert (not pictured) for a town hall event at NewsNation's headquarters in Chicago, Illinois, U.S., September 13, 2023. REUTERS/Jim Vondruska/File Photo Acquire Licensing Rights Sept 18 (Reuters) - Former Vice President Mike Pence said China is close to becoming an "evil empire" on Monday as he and fellow Republicans vying for their party's presidential nomination ramp up rhetoric against what they say is America's number one foreign adversary. "China is the greatest strategic and economic threat facing the United States in the 21st Century,"...