Former Secretary of State Rex Tillerson, who called Trump a "moron" while he was in office, from which he was later fired, has expressed some more choice thoughts on the president.

Speaking to Bob Shieffer last night, which was aired on CBS, Tillerson said, "What was challenging for me coming from the disciplined, highly process-oriented Exxon Mobil corporation, to go work for a man who is pretty undisciplined, doesn't like to read, doesn't read briefing reports, doesn't like to get into the details of a lot of things..." He also said that Trump "acts on his instincts," which "in some respects looks like impulsiveness."

WATCH: Former Secretary of State Rex Tillerson is speaking publicly about what led to his firing in March by President Trump.

CBS News political contributor @bobschieffer interviewed Tillerson in Houston last night, at a dinner to benefit MD Anderson Cancer Center. pic.twitter.com/47qDqcsrMs

— CBS This Morning (@CBSThisMorning) December 7, 2018

Not seen in the clip above but mentioned in The Washington Post is that Tillerson then talked about "how Trump as president regularly attempted to do things that violated the law."

“So often, the president would say, ‘Here’s what I want to do, and here’s how I want to do it,’ " Tillerson said, according to the Houston Chronicle, “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 also wasn't keen on Trump's use – and the American's love of – Twitter. Read the rest

70% of global emissions come from 100 companies: Koch Industries' annual carbon emissions bill is 24 million tons. Read the rest

Trump might be a moron, as far as Secretary of State Rex Tillerson is concerned, but the pay's good enough for him. In a hastily-arranged press conference following NBC News' morning report about Tillerson-Trump friction, he denied one key claim--that he had to be talked out of quitting--but did not deny calling his boss a "moron" in front of others.

Tillerson, after denying the report, vaulted into a round of obsequious praise aimed at an audience of one.

He loves this country. He puts Americans and America first. He's smart. He demands results wherever he goes and he holds those around him accountable for whether they've done the job he asked them to do. Accountability is one of the bedrock values the president and I share.

Pretty humiliating, but you don't get where Rex got by having self-respect.

Rex Tillerson says he's never considered leaving his post pic.twitter.com/fM3V0qOOuV

— Bloomberg (@business) October 4, 2017

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The U.S. government today said that Americans will be prohibited from traveling to North Korea because of an elevated risk of "long-term detention" in the country, where an American student was jailed last year while traveling there, and later died. Read the rest

Here is the full and complete transcript of remarks given to news reporters by Russian Foreign Minister Sergey Lavrov and U.S. Secretary of State Rex W. Tillerson, just before Lavrov went into a closed-door meeting with President Donald Trump. Read the rest