WATCH LIVE: Collins, Jackson face off in Maine U.S. Senate debate

Senator Susan Collins, R-Maine, and Democratic challenger Troy Jackson are meeting on the debate stage this Thursday for their final confrontation. This event occurs within one of the most closely watched races of the current midterm election cycle. Current polls indicate a neck-and-neck race between the two candidates as they face off in Maine. The debate serves as the final opportunity for the candidates to present their arguments before voters decide the U.S. Senate seat outcome.