Whistleblower Edward Snowden tweeted in support of Bernie Sanders’ foreign policy positions during last night’s debate.

In a tweet, Snowden says Sanders was the most credible candidate when it came to foreign policy, hitting out at failed ‘conventional wisdom’.

Sanders unexpectedly more credible on foreign policy than OM and Clinton, who repeat conventional wisdom that failed for a decade.#DemDebate — Edward Snowden (@Snowden) December 20, 2015

Snowden was not silent during the debate, and tweeted about many of the key issues as they were being discussed.

On the issue of Libya, Snowden posted a seemingly sarcastic tweet, hitting out at the United States’ role in the coalition.

That Libya coalition worked out great. — Edward Snowden (@Snowden) December 20, 2015

Edward Snowden this year joined Twitter. He is a former employee of the CIA, and is wanted by the federal government for violating the Espionage Act, and theft. He is currently in Russia.