Actor Michael Douglas defended President Biden's age and mental health saying that according to his sources, the president is as sharp as a tack.

On CNN's "GPS" with Fareed Zakaria, Douglas was asked about his age (79) in relation to President Biden, who is 81 years old.

"You're about President Biden's age," Zakaria remarked. "You're doing fantastically. You look like a million bucks. Why don't you fully run for president?" he asked Douglas.

"Oh, I did the movie once, you know," Douglas replied, perhaps referring to his role as the commander in chief in the 1995 film "The American President."

"Did it ever tempt you?" Zakaria continued.

"Well, I knew I had the ending, so the difference is having the ending," Douglas joked. "No. They asked me to run for governor a couple of times in California. And I remember saying, 'Well, where do you want me?' 'Well, we need a man who can finance his own campaign.' Yeah ..." Douglas recalled.