Complex sentence: As a result, at the meeting that night Frasier is stunned when Niles betrays him and reveals his intention to run against him; and when the votes come in at a tie, a wine-tasting competition to decide the winner sees Niles narrowly win.
Split into simpler sentences: As a result, at the meeting that night Frasier is stunned when Niles reveals his intention to run against him. When the votes come in at a tie, a wine-tasting tiebreaker sees Niles narrowly win.