Mr. Dukakis, the probable Democratic nominee, ran ahead of Mr. Bush, the almost certain Republican candidate, by 49 percent to 39 percent among 1,056 registered voters. (New York Times May 17, 1988)
The poll of 1,172 randomly selected registered voters put Dukakis, the likely Democratic nominee, ahead of Bush, who has clinched the Republican nomination, by 53% to 40%. (Washington Post May 27, 1988)
Gallup Poll: Dukakis leads Bush by 17 points, 54-37. "Democrat Michael Dukakis, riding a wave of positive publicity from the convention that nominated him for president last week, led Vice-President Bush by 17 points in a Gallup poll released last Tuesday". (Daytona News Journal July 27,1988)
Fifty-five percent of the 948 registered voters interviewed in the poll said they preferred to see Mr. Dukakis win the 1988 Presidential election, while 38 percent said they preferred to see Mr. Bush win. The poll had a margin of sampling error of plus or minus four percentage points. ( New York Times July 26, 1988)