#TheFinal5: With Dems in control, does Georgia runoff matter?

Georgia voters head back to the polls in three weeks to settle the last undecided U.S. Senate race: the battle between incumbent Sen. Reverend Raphael Warnock (D) and challenger Herschel Walker (R). But why does the state rely on a runoff system, and with the Democrats clinching control of the incoming Senate, is it still a must-win? Georgia State University law professor Anthony Michael Kreis joins Jim to explain what it all means.