In her campaign , she embarked on an extensive door - knocking effort in her district .
In 1986 , Cantwell was elected to the Washington State House of Representatives at the age of 28 .
In Cantwell 's campaign , Cantwell embarked on an extensive door - knocking effort in her district .
In 1986 , Cantwell was elected to the Washington State House of Representatives at the age of 28 .