"I never said Russia did not meddle in the election, I said “it may be Russia, or China or another country or group, or it may be a 400 pound genius sitting in bed and playing with his computer.” The Russian “hoax” was that the Trump campaign colluded with Russia - it never did!"
Shortly after the 2016 election, Trump told Time magazine “I don’t believe they interfered. That became a laughing point, not a talking point, a laughing point. Any time I do something, they say ‘oh, Russia interfered.’”
Trump also said on at least two occasions that he believes Russian President Vladimir Putin's assurance that he did not meddle:
Last July, Trump said he had repeatedly asked Putin about the topic and that the Russian president had forcefully denied it. “First question, first 20, 25 minutes, I said, ‘Did you do it?’ He said, ‘No, I did not, absolutely not.’ I then asked him a second time, in a totally different way. He said, ‘Absolutely not,” Trump recounted. “Somebody did say if he did do it, you wouldn’t have found out about it. Which is a very interesting point.”
Then, in November, he was even more adamant that he took Putin at his word on the topic. “Every time he sees me he says, ‘I didn’t do that,’ and I really believe that when he tells me that, he means it,” Trump told Axios.
And then there are the numerous tweets in which Trump declares the Russia investigation is a hoax: