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.

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.

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.