Surprise election upset shows hating Trump is no longer enough as Democratic voters turn to new playbook

A growing number of Democrats who grabbed national attention as they led the resistance to President Donald Trump during his first term in the White House are the latest casualties in this year's primary battle between the party's left-wing and the establishment.

The latest victim: Alexander Vindman, who gained national prominence nearly a decade ago as the then-Army lieutenant colonel and National Security Council official who served as a key witness against Trump during the president's first impeachment trial.