Im fast, im pretty and cant possibly be beat. Announcer from abc news, its this week. Here now, chief anchor George Stephanopoulos. Good morning. The world is remembering muhammad ali this week. A legendary champ thanks to his fast hands, even faster mouth. Im not the greatest, im the double greatest, he said. Its hard to be humble when youre as great as i am. Ali knew how to get inside his opponents head, and all through the primaries donald trump showed he could do exactly the same thing with tough talk, taunts and labels that stuck. The big question for him now, will those same tactics work in a general election . Does trump have to change to win . In this weeks latest round of the president ial fight, trump declared hes not changing at all, and Hillary Clinton is following his lead. This week, fists flew in the streets of san jose and donald trump combative as ever on the stump. Is this what its going to be like covering you if youre had president . Yeah, it is. Were going to have