The House select committee investigating the January 6 riot included the conspiracy theorist in a the latest round of subpoenas issued on Monday.
The lawyer to President Donald Trump and former New York City mayor attacked the impeachment hearings currently taking place.
"Ah, the Soviet Union had trials with anonymous, unnamed witnesses. Welcome to McCarthy II," Giuliani said. "Even Salem witch trials didn't use anonymous testimony," he tweeted earlier in the thread.
"Welcome to modern-day McCarthyism," McConnell said in a fiery speech on the Senator floor. "McCarthy-like tactics out in the open for everyone to see."
"So many lives have been ruined over nothing—McCarthyism at its WORST!"
The president's eldest son didn't see the irony.
Sentenced to prison during the Red Scare, the New Jersey woman says she now has evidence to prove her innocence.