Democrat Eugene Vindman and his brother and fellow decorated veteran and national-security expert Alex brought attention to phone call in which the then-president appeared to hinge military aid on the announcement of a Biden investigation.

Democratic retired Army Lt. Col. Eugene Vindman defeated Republican Derrick Anderson in the open race for Virginia’s 7th Congressional District in a close race that took nearly a day to determine the winner.

Yevgeny Vindman, a former Army lieutenant colonel, was fired by the Trump administration for joining his twin brother as a whistle-blower in the first impeachment of President Donald J. Trump.