NASHUA, N.H. -- Paul E. Tsongas, the only announced major Democratic candidate in the 1992 presidential race, has decided to concentrate on the New Hampshire primary instead of the Iowa caucuses.
The shift was revealed last week when Mr. Tsongas' Iowa field director, Emily Smith, announced her resignation. She said that the Iowa race had changed because Iowa Sen. Tom Harkin would probably run. Mr. Tsongas changed strategies, she said, because Mr. Harkin could win "90 percent of the vote" in the Iowa caucuses.


