Former New York City mayor and U.S. President Donald Trump’s personal lawyer Rudy Giuliani was trolled on Twitter by Trump critics after accidentally putting a hyperlink in a recent tweet.

Giuliani tweeted, “Mueller filed an indictment just as the President left for G-20.In July he indicted the Russians who will never come here just before he left for Helsinki.Either could have been done earlier or later. Out of control!Supervision please?”

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The accidental typo created a hyperlink to a URL that was subsequently hijacked to carry an anti-Trump message. The link directs to a page which simply says, “Donald J. Trump is a traitor to our country.”