It comes after the president's eldest son met a Russian lawyer
The counsellor to US President Donald Trump has used flash cards to explain Russian collusion.
Kellyanne Conway was pointing out the difference between 'collusion' and 'conclusion' on Fox News.
It comes after the president's eldest son met a Russian lawyer during the presidential campaign.
Donald Trump Junior had spoken to Natalia Veselnitskaya in the hope of unearthing compromising information on Hillary Clinton.
President Trump has insisted he was unaware of the controversial meeting until a "couple of days ago".
On Tuesday night, Mr Trump Jr had said he had not told his father about the talks because no revelations about their Democratic rival had emerged.
Speaking to the Reuters news agency in the Oval Office, Mr Trump also revealed that he directly asked Russian President Vladimir Putin last week whether he had meddled in the US election campaign - spending 20 to 25 minutes of their two-hour meeting on the subject.
"I said: 'Did you do it?' and he said: 'No, I did not. Absolutely not.
"I then asked him a second time in a totally different way. He said absolutely not," the US president said.
And Ms Conway says there is no evidence of any collusion with Russia.