We are about to find out if Kamala Harris' biggest advantage is going to make the winning difference: a subject I cover in depth in my new column in Newsweek today.

One person who knows quite a lot about it and who believes that the answer is yes is Matt Wiley, a Republican political consultant and former executive director of the Massachusetts Republican party who has managed many Senate campaigns. He lays out the case for why he not only thinks Harris' advantage is going to make a difference, but why he feels confident that Trump is going to lose. He also explains how Trump has destroyed the party that he believes in and how both Republicans and Democrats might change course after the election.