Republican Sen. Susan Collins and Democratic challenger Troy Jackson accused each other of corruption during a heated debate Thursday in the Maine Senate race, one of the most closely watched midterm contests and one that could determine control of the upper chamber next year.

Democrat Abdul El-Sayed wasted no time going after former Rep. Mike Rogers over the Iran war -- and he didn't let up in their first U.S. Senate debate, arguing that Michiganders are struggling to make ends meet because of President Trump's war and his tariffs.