**ADVANCE FOR TUESDAY, JAN. 26** FILE- In this June 12, 1987 file photo U.S. President Reagan acknowledges the crowd after his speech in front of the Brandenburg Gate in West Berlin, where he said "Mr. Gorbachev, tear down this wall!" Authors, editors and speechwriters interviewed by The Associated Press agree that Obama is indeed a gifted and effective speechmaker, but even admirers have a hard time remembering what he actually says. (AP Photo/Ira Schwartz, File)