Complex sentence: Santana begins to bully Finn Hudson more than ever before which leads to a confrontation where he tells her to come out in a crowded hallway which is overheard by other students one of who has an uncle running for congress against Sue Sylvester.
Split into simpler sentences: Santana begins to bully Finn Hudson more than ever before, which leads to a confrontation where he tells her to come out in a crowded hallway. This is overheard by other students, one of who has an uncle running for congress against Sue Sylvester.