TV icon Oprah Winfrey on Thursday endorsed Democrat John Fetterman in Pennsylvania’s hotly contested Senate race and rejected Republican Dr. Mehmet Oz, whom she had helped launch to stardom nearly two decades ago when she brought him on her popular daytime talk show as a regular guest. Until now, Winfrey had said she would leave the election to Pennsylvanians, but she changed that position in an online discussion on voting. In a sign of how high the stakes are, Trump will return to Pennsylvania on Saturday to campaign for Oz, while President Joe Biden and former President Barack Obama will campaign for Fetterman that same day.