Attorneys working for former Secretary of State Hillary Clinton’s presidential campaign allegedly attempted to hack computer servers linked to former President Donald Trump both during the campaign and after he was elected president, according to Special Counsel John Durham.

That prompted Trump to go on the offensive, accusing the Democrats of a far more serious crime than Watergate in a fiery statement.

“The latest pleading from Special Counsel John Durham provides indisputable evidence that my campaign and presidency were spied on by operatives paid by the Hillary Clinton Campaign in an effort to develop a completely fabricated connection to Russia,” Trump published.

When he presented claims of a covert communications route between the Trump Organization and the Kremlin-linked Alfa Bank in September 2016, Sussmann is accused of falsely assuring then-FBI General Counsel James Baker that he was “not performing work for any client.”

However, according to Durham’s complaint, Sussmann gathered and relayed the claims to the FBI on behalf of at least two clients, including a technology executive (Tech Executive 1) at a US-based internet company (Internet Company 1) and the Clinton campaign.

Furthermore, according to the complaint, Tech Executive-1 sought assistance from experts at a U.S.-based institution to mine Internet data in order to construct a story linking then-candidate Trump to Russia.