Still, Trump's explanation that the decision was based on Brennan's "erratic conduct and behavior" and his "wild outbursts on the internet and television - about this Administration" spurred free speech concerns.
"Mr. Trump's claims of no collusion are, in a word, hogwash", Brennan wrote.
He added: "This action is part of a broader effort by Mr Trump to suppress freedom of speech and punish critics".
Some suggested Trump might have grander, and more nefarious ambitions: he could be testing the waters on stripping Mueller of his security clearance. I'm taking bets. How much will the inevitable John Brennan GoFundMe raise in ResistanceBucks?
Rep. Adam Schiff (D-California), ranking member of the House Intelligence Committee, said that "In adding John Brennan to his enemies list, Trump demonstrates again how deeply insecure and vindictive he is".
In a press release on Wednesday, Paul hailed the decision and noted he had urged Trump to make the move. So, for example, I go into Central Intelligence Agency regularly and I help them think through issues, I talk to people, I'm there to assist in any variety of ways.
"Is John Brennan monetizing his security clearance?"
So what, who's going to stop him?
The individuals were accused - without details - of politicizing and monetizing their public service and security clearances.
Former intelligence officials usually keep their security clearance but rarely use it, sometimes providing advice to successors. He's also been critical of the president.
He told MSNBC Deadline host Nicolle Wallace that he was completely blindsided by the move, only finding out from White House press secretary Sarah Sanders' afternoon press briefing instead of first being contacted by Director of National Intelligence Dan Coats or CIA Director Gina Haspel.
He published a book this year called "The Assault on Intelligence: American National Security in an Age of Lies".
Rostow also criticized Brennan for breaking precedent and speaking out against the current administration. But the objective of extending security clearances is to help the US government, not the people who have them. Omarosa will sell more books than she would have but for POTUS's tweet about her being a "dog".
Also on the list: fired FBI agent Peter Strzok, FBI lawyer Lisa Page and senior Justice Department official Bruce Ohr.
Brennan called Trump's behavior at a summit with Russian President Vladimir Putin "nothing short of treasonous". However, while Democrats are falling over themselves to pat the former career spy on the back, there was a time when Brennan spied on Democratic lawmakers compiling a report into his agency's use of torture tactics - and got away with it. The offense: "exercising 1st Amendment rights", tweeted Michael Bromwich, a former inspector general of the Justice Department, which oversees federal law enforcement.
Trump then pointed to other investigators who worked on the Russian Federation probe and the investigation of Hillary Clinton's private email server. But McCabe didn't become involved in the Clinton probe until after his wife's bid for elected office.
Lisa Page, an Federal Bureau of Investigation lawyer. Harry Reid (D-Nev.), used the claims in a letter to prompt then-FBI Director James Comey to investigate the Trump campaign for alleged collusion with the Russian interference. Seems like you will never understand what it means to be president, nor what it takes to be a good, decent, & honest person.