Senate Minority Leader Mitch McConnell had a warning for President Joe Biden regarding a potential Supreme Court nominee in the wake of Justice Stephen Breyer‘s retirement announcement. “Looking ahead — the American people elected a Senate that is evenly split at 50-50. To the degree that President Biden received a mandate, it was to govern from the middle, steward our institutions, and unite America,” McConnell said in a statement. “The President must not outsource this important decision to the radical left. The American people deserve a nominee with demonstrated reverence for the written te…