Former Secretary of State Rex Tillerson said President Trump often floated ideas that would have been illegal if carried out, and he characterized the president as a “pretty undisciplined” person who “doesn’t like to read.”

“So often, the president would say, ‘Here’s what I want to do and here’s how I want to do it.’ And I would have to say to him, ‘Mr. President, I understand what you want to do, but you can’t do it that way. It violates the law,'” Tillerson said Thursday evening in Houston during an interview with former “Face The Nation” host Bob Schieffer, the longtime CBS journalist.