Vice President Bush and Massachusetts Gov. Michael S. Dukakis (D) continue as front-runners in New Hampshire, according to a WJLA-TV/Gallup poll, but neither wins as many as 4 out of 10 of his party's supporters. Bush leads the Republicans with 38 percent, and Dukakis leads the Democratic pack with 39 percent. The poll indicates that Dukakis' support is softer than Bush's.

Following Bush is Sen. Robert J. Dole (R-Kan.), who has the support of 23 percent of the Republicans. With his best showing yet for the Feb. 16 primary, Rep. Jack Kemp (R-N.Y.) is third with 15 percent. The remaining GOP candidates -- Pete du Pont, Alexander M. Haig Jr. and Pat Robertson -- each drew less than 5 percent. Thirteen percent of the Republicans surveyed remain undecided.

Although the poll shows former senator Gary Hart second in the Democratic race with 19 percent, followed by Sen. Paul Simon (D-Ill.) with 12 percent, private campaign polls show Hart in third place and Simon in second with just about the reverse numbers. Like their GOP counterparts who drew 5 percent or less, Rep. Richard A. Gephardt (D-Mo.), Jesse L. Jackson, Sen. Albert Gore Jr. (D-Tenn.) and former Arizona governor Bruce Babbitt will need a major break to get in the race there.

Eleven percent Democrats polled said they are undecided.