Ohio Sen. JD Vance and Minnesota Gov. Tim Walx square off in the first and only scheduled Vice Presidential debate of this year's election cycle.What would a "win" look like for each candidate? Denver7's Nicole Brady sat down with Robert Preuhs, the chair of the MSU Denver political science department to break it down.In their conversation: What constitutes a win for both candidates What to watch for with a rules change for Tuesday's debate What is the impact of a VP debate on the election? What to expect during the Vice Presidential debate