A Democratic ticket headed by Michael Dukakis with Jesse Jackson as his running mate would defeat George Bush in a general election, according to a poll released on Saturday.

Without Jackson, a Dukakis-Bush contest would be a tossup, and alone Jackson would be crushed by the vice president, but together the two Democrats would win, the Roper Organization survey showed.A poll by Newsweek magazine released on Saturday also showed that if the election were held today the Democrats would have a better chance of victory against Bush if Dukakis were the party's nominee.

Dukakis and Jackson are neck-and-neck in the race for delegates to the Democratic National Convention, but neither man is likely to get the 2,082 needed to clinch the nomination on the first ballot, leading to speculation that the nomination will be brokered by party leaders.