WASHINGTON — (CNN) Libertarian presidential candidate Gary Johnson told CNN Thursday that Mitt Romney was considering endorsing him for president this fall.

Johnson, a former governor of New Mexico, told CNN’s Wolf Blitzer that he and Romney had spoken in recent weeks.

“I think he’s considering the possibility of doing this,” Johnson said, “of actually endorsing the two of us.”

Romney has previously said that he would look at the ticket but has not publicly committed to supporting them.

CNN has reached out to Romney for comment.

William Weld, a Romney associate and Johnson’s running mate, agreed with Johnson, especially if they meet the threshold in polling to make the general election debates.

“He’s thinking about it, Wolf, and I don’t want to press the point unless we get to 15%, because then I think the case for it is overwhelming.”

Romney told CNN last month that he was considering Johnson and would make a decision once he got to know him better.

“If Bill Weld were at the top of the ticket, it would be very easy for me to vote for Bill Weld for president,” Romney said. “So I’ll get to know Gary Johnson better and see if he’s someone who I could end up voting for. That’s something which I’ll evaluate over the coming weeks and months.”