The truth does actually matter, former FBI Director James Comey responded to President Trump’s lawyer Rudy Giuliani who claimed Sunday the “ truth isn’t truth” in the Russia investigation.

In a tweet, Comey took aim at Giuliani without mentioning his name.

“Truth exists and truth matters,” he said. “Truth has always been the touchstone of our country’s justice system and political life. People who lie are held accountable. If we are untethered to truth, our justice system cannot function and a society based on the rule of law dissolves.”



Truth exists and truth matters. Truth has always been the touchstone of our country’s justice system and political life. People who lie are held accountable. If we are untethered to truth, our justice system cannot function and a society based on the rule of law dissolves. — James Comey (@Comey) August 19, 2018



Giuliani told NBC’s “Meet the Press” that “truth isn’t truth” because Trump could have a different perception of events than those described by witnesses being interviewed by special counsel Robert Mueller, who is investigating Russian interference in the 2016 election.

Giuliani noted Comey and Trump have conflicting stories about whether they discussed former national security adviser Michael Flynn. “Donald Trump says, 'I didn't talk about Flynn with Comey.' Comey says, 'you did talk about it.' So tell me what the truth is. If you're such a genius,” he said.

[Also read: Rudy Giuliani: The public is the 'grand jury' on Trump's fate in Robert Mueller investigation]