110819 404 Three Democratic Presidential candidates will campaign in Northwest Iowa this weekend. Vermont Senator Bernie Sanders, Minnesota Senator Amy Klobuchar, and Colorado Senator Michael Bennet will make appearances in Sioux City and Orange City. Michael Bennet is meeting with potential caucus-goers this afternoon and evening. Asked this morning about the tariff battle that President Trump set off with China, Bennet said Trump was right to question the trade imbalance with China. But,