"Dan Koh" . "2018 Massachusetts House of Representatives elections" . "2018 United States House of Representatives elections in Massachusetts#Democratic primary" . "2018 Massachusetts's 9th congressional district election" . . "2018 Massachusetts's 1st congressional district election" . "2018 United States House of Representatives elections in Massachusetts" . . "2018 U.S. House" . "2018 Massachusetts's 1st congressional district" . "2018 preliminary election" . . "2018 Massachusetts's 6th congressional district election" . . "2018 Massachusetts's 2nd congressional district election" . "2018 United States House of Representatives elections in Massachusetts#District 3" . "2018 election" . "2018 Massachusetts's 7th congressional district election" . "Re-elected in 2018" . "primary election" . "2018 United States House of Representatives elections in Massachusetts" . "2018 primary" . . . . "2018 Massachusetts's 3rd congressional district election" . "2018 United States House of Representatives elections in Massachusetts" . "2018" . . "2018 Massachusetts's 5th congressional district election" . "First elected in 2018" . "2018-11-06" . "Elected in 2018" .