Senate and AG seats are up

US Senate Democrat Edward M. Kennedy, 74, has served 44 years in the US Senate and has championed minimum wage and healthcare legislation. Republican challenger Kenneth G. Chase, 45, runs a language school and has made stricter immigration controls a focus of his run to unseat Kennedy.

Attorney General Republican Lawrence W. Frisoli, 56, is a lawyer who served a two-year term on the Cambridge City Council in the late 1970s. He has trumpeted a platform that backs gun rights and capital punishment for heinous murders. Martha M . Coakley, 53, the Democrat, is aiming to become the first woman in an office her party has held for nearly 40 years. She is finishing her second term as Middlesex district attorney.