Tailgated so close that I could see both driver and passenger clearly in my mirror. I had my one year old son clearly rear-facing in my car and I was going the speed limit. Slowed down hoping they would pass me and not hit me if I needed to stop. Finally passed me on my own lane once the lane widened a little so that I had to slow down and swerve not to be swiped/ hit. Flipped me off multiple times, including at the next light after offense was a few minutes past.