Former CBS news anchor Dan Rather said Thursday that President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s decision to leave the Paris climate agreement resulted from Trump “lashing out in anger” after his recent foreign trip.

“It seems clear that he’s mad. He has some rage; he’s scared,” Rather said on MSNBC’s “The Last Word with Lawrence O’Donnell.”

“He just came back from his European trip and he was angry with the leader of Germany … and the new leader of France.”

“So what you have here is a president who is lashing out in anger,” Rather continued, warning that Americans “haven’t had a president this psychologically troubled since Richard Nixon.”

“History will punish Donald Trump for this decision,” Rather said.

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Trump’s decision to pull the United States from the Paris agreement was met with both domestic and foreign criticism.

Former President Barack Obama Barack Hussein ObamaObama warns of a 'decade of unfair, partisan gerrymandering' in call to look at down-ballot races Quinnipiac polls show Trump leading Biden in Texas, deadlocked race in Ohio Poll: Trump opens up 6-point lead over Biden in Iowa MORE, who negotiated the deal, called Trump’s decision an abdication of leadership and said Trump was “rejecting the future.”

The leaders of France, Germany and Italy quickly responded to Trump’s decision, saying the deal was “irreversible and we firmly believe that the Paris agreement cannot be renegotiated.”

Rather has emerged as a frequent critic of Trump’s presidency, criticizing his response to the recent murders aboard a Portland, Ore., train and accusing Trump of having a “willful disregard for the rule of law” after Trump fired FBI Director James Comey.