Virginia state Del. Jennifer Boysko (D) easily defeated her Republican opponent in the first state legislative special election of the year to hold on to a heavily Democratic district in the fast-growing Washington suburbs.

With all but one precinct reporting in the Fairfax County and Loudoun County-based district, Boysko led former Del. Joe May (R) by a wide 69-percent-to-30-percent margin.

All 40 of Virginia's state Senate seats are up for grabs in November's elections, and Democrats have targeted four Republican-held seats that Hillary Clinton won in 2016.