Ex-GOP senator clears hurdle in crucial comeback bid as Republicans try to flip key Senate seat

Former Sen. John E. Sununu on Tuesday won the GOP Senate nomination in swing state New Hampshire, in a race that may determine if Republicans keep control of the chamber in the midterm elections.

Sununu defeated former Sen. Scott Brown, the Associated Press reports, in the showdown to succeed retiring longtime Democratic Sen. Jeanne Shaheen, the first woman in the nation's history elected governor and senator.

Republicans haven't won a Senate election in New Hampshire in 16 years,...