Discription of Events: This driver proceeded to speed in front of me repeatedly and hit their brakes and tried to stop me on a 3 lane highway. Have the whole thing from start to finish on my dashcam. I repeatedly tried to move into another lane and he would move over and brake hard again. I finally tried to speed away but their car was much faster and I could not safely maintain the lead. I pulled over to far lane and braked to well below the speed limit and they braked too to wait. Finally got another car between us when construction reduced the highway to one lane. They proceeded to go really slow and brake often, but not as aggressively. Once my exit came up, I took it and never saw them again. Far as I can tell on my dashcam video. They were upset I got in front of them in an empty lane at t traffic light. They were in the right lane behind a big truck and I was in the middle lane. I proceeded in my lane to the light and stopped. Then I drove off. I noticed in my review mirror that this red car was driving recklessly and I just drove off normally. Less than a minute later they zipped past me on the left and started all this hard braking in front of me.