Afternoon Briefs: $950M malpractice lawsuit can proceed against Katten; Breonna Taylor’s family says police withheld bodycam footage

A proposed amicus brief filed Monday argues that President Donald Trump’s pardon of Sheriff Joe Arpaio is void because it violates the Constitution. The brief (PDF) was submitted to a federal judge in Phoenix who is considering whether the pardon, issued before Arpaio had a chance to appeal his contempt conviction, requires her to vacate…