She wanted to merge onto the left lane to turn though I did not notice until after the light turned green. I proceeded to go so that there would he no traffic and she could go behind me. She turns and drives erratically and cuts me off, so I quickly change lanes so the situation does not esculate. She proceeds to tailgate and follow me and gives me multiple middle figers and yells profanities put of her windows though mine is rolled. I switch lanes again to try and get her off my trail but she continues to follow me. Almost getting the both of us into an accident. She then proceeds to cut everyone driving down the street off jepordizing her passengers life and the lives of every other person on the street.