Saturday at CBS’s Republican presidential primary debate, Jeb Bush and Donald Trump got into a heated exchange over the foreign policies of Jeb’s brother, former President George W. Bush. Partial transcript as follows: DICKERSON: Mr. Trump, on Monday, George W. Bush will campaign in South Carolina for his brother. As you said tonight, and you’ve often said, the Iraq war and your opposition to it was a sign of your good judgment. In 2008, in an interview with Wolf Blitzer talking about George W. Bush’s conduct, you said you were surprised Nancy Pelosi didn’t try to impeach him. You said, “which personally I think would have been a wonderful thing.” When you were asked what you meant by that, you said, “For the war. He got us into the war with lies.” Do you think President Bush should have been impeached? TRUMP: “I have to say, as a businessman, I get along with everybody. I have business all over the world. I know so many of the people in the audience. By the way, I’m a self-funder. I have my wife and I have my son. I don’t have this. That’s all I have. So let me just tell you,