WASHINGTON (AP) – A key ally of Joe Biden says Sen. Amy Klobuchar seems a less likely choice to become the running mate on Biden’s presidential ticket following this week’s death of a black man in police custody in Minneapolis. Rep. James Clyburn of South Carolina helped rescue Biden’s presidential campaign this year by boosting him to a primary victory in the state. Klobuchar is a Minnesota Democrat. Before coming to the Senate, she was prosecutor in the county that includes Minneapolis. Under her, no police officers involved in the deaths of people in custody were charged with crimes. Clyburn says Klobuchar faces “very tough timing.”