"I have been sitting here looking in the federal code trying to find collusion as a crime," Giuliani said in an interview on Fox News Channel's "Fox & Friends." "Collusion is not a crime."
Trump has repeatedly denied there was collusion between his campaign and Russia during the 2016 U.S. presidential election. As recently as Sunday, the president took to Twitter to repeat the claim.
"There is No Collusion!" Trump wrote, referring to special counsel Robert Mueller's investigation into Russia's attack on the election.
Giuliani expanded on his remarks in an interview with CNN. "The hacking is the crime," Giuliani told the network. "The president didn't hack."
Following the interview on CNN, Giuliani responded to a post on Twitter that suggested the media was "nitpicking and twisting" his comments.
Giuliani called the post an "excellent observation."
"You can investigate an innocent person forever and forever and find nothing. When do we say enough is enough. No collusion, no obstruction. President Trump did nothing wrong," Giuliani wrote in response.