LOUISVILLE, Ky. — Supreme Court Justice Amy Coney Barrett expressed concerns Sunday that the public may increasingly see the court as a partisan institution.Justices must be “hyper vigilant to make sure they’re not letting personal biases creep into their decisions, since judges are people, too,” Barrett said at a lecture hosted by the University of Louisville’s McConnell Center.Introduced by Senate Republican leader Mitch McConnell, who founded the center and played a key role in pushing …