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Alan SudermanAlan SudermanOctober 3, 20169min730

With the first presidential debate complete and its spin cycle nearly over, the two understudies are getting ready to take the main stage. The vice presidential debate Tuesday will be the only time Republican Mike Pence and Democrat Tim Kaine will for the most part have the nation's political attention all to themselves, away from their much better-known running mates. The stakes will be lower than the three presidential debates, but will give each largely undefined candidate a chance to make a mark on a national audience.