President Donald Trump said there is ‘nothing wrong’ with the money his family has made in crypto, responding to financial disclosures that showed he earned at least $1.4 billion from the industry last year.

Asked in a CNBC interview on Thursday at the White House whether he knew about the ventures, Trump said “I could know about it. I didn’t.” He said that there was nothing illegal about his involvement and that his goal was for the U.S. to lead in crypto.

Trump handed day-to-day control of his businesses to his two eldest sons before taking office, and did not divest his assets.

The disclosure, released this week by the federal Office of Government Ethics, made Trump the largest crypto earner in U.S. politics.

It showed about $636 million tied to his eponymous memecoin, which was launched on the eve of his return to office, roughly $594 million from World Liberty Financial, the crypto firm he co-founded with his sons and nearly $197 million from a stablecoin venture.