Does the coverage of the Keith Ellison case show bias in the media?

While discussing the Kavanaugh case recently, I mentioned the Keith Ellison case. Several of the jellies (4 I think) say they had never heard of it. A sitting representative physically assaulting his girlfriend in front of her son with video evidence and they had never heard of it. Does this show how biased the liberal media is to suppress such a story, especially given the width and breadth of their coverage of Kavanaugh?