Prior to his Senate run Twilegar was a member of the
Idaho Legislature, serving in the
Idaho House of Representatives from 1975 to 1976 and the
Idaho Senate from 1977 to 1982. Additionally, Twilegar was the Senate Minority Leader during his time in the Senate. Twilegar was on
Boise City Council from 1984 to 1987. Twilegar ran unopposed in the primary for Boise County prosecutor and was unopposed in the general election. Although he lived in
Ada County and did not have the necessary bar license, Twilegar ran in the 2008 primary in both Boise County and
Camas County, seeking to ensure that he would achieve office in one of them. He won both primaries but chose to withdraw from the Camas County ballot. He was investigated by the Idaho Attorney General's office for failure to meet the legal residency requirement in Boise County. but was found to qualify for the general election, which he won. In 2020, Twilegar ran unopposed in the Democratic primary for Ada County Prosecutor. He was defeated by Republican Jan Bennetts in the November general election. == Personal life ==