WASHINGTON — Weeks before President Joe Biden made his first address to Congress in 2021, a graphic video was released of a Black man being killed at the hands of police.The country watched the now hauntingly familiar scene play out across its screens. Family members tearfully pleaded for change. Lawmakers in Washington pledged to pass meaningful reform.Biden pumped momentum into talks during the nationally televised address telling Congress to “get it done” by the next month, the anniversary of a …