An emotional Megyn Kelly began her program Wednesday morning by reading a prepared apology for her comments the previous day defending blackface Halloween costumes. “I’m Megyn Kelly. And I want to begin with two words — I’m sorry,” the Megyn Kelly Today host said as she fought back tears. “You may have heard that yesterday we had a discussion here about political correctness and Halloween costumes, and that conversation turned to whether it is ever okay for a person of one race to dress up as another — a black person making their face lighter or a white person making...