Donald Trump says he doesn’t flat out blame former president George W. Bush that the Sept. 11 terror attacks happened on his watch. But he can think of three reasons why one could hold Bush responsible. And, he might add, they are three things a President Trump would do very differently. “You always have to look to the person at the top,” Trump said Saturday in a telephone interview. “Do I blame George Bush? I only say that he was the president at the time, and you know, you could say the buck stops here.” So why might one consider...