But at the conclusion of the trial, Mr McConnell penned a scathing op-ed in the Wall Street Journal, in which he excoriated Mr Trump's behaviour during and after the riots as "unconscionable" and suggested the former president could still be criminally liable for his actions.
In a statement released by Trump's political action committee, he said: "The Republican Party can never again be respected or strong with political "leaders" like Sen".
"He didn't get away with anything yet", McConnell said.
In a vicious attack laced with ingratitude, Trump accused Senate Minority Leader Mitch McConnell of "lack of political insight, wisdom, skill, and personality", just days after Senate Republicans- under McConnell's leadership - thwarted Democrats' effort to convict him on the impeachment charge that he incited the deadly January 6 Capitol riot.
In his statement on Tuesday night, Mr Trump argued that Mr McConnell bore responsibility for Republicans losing control of the Senate in November because he refused to sanction larger direct payments for Americans in a coronavirus relief package.
A spokesperson for McConnell did not immediately return requests for comment. McConnell, 'I know Trump can be a handful, but he is the most dominant figure in the Republican Party.
McConnell said he voted to acquit Trump because the Senate has no jurisdiction over an ex-president - even though he had rejected a push from Democrats to start the trial when Trump was still in office.
The gap between them widened when McConnell declared on the Senate floor on Saturday that Trump was "practically and morally responsible" for the deadly January 6 storming of the U.S. Capitol.
In fact, according to several media accounts, Trump's 622-word diatribe initially included a dig at McConnell having "too many chins and not enough smarts" - before aides persuaded him to drop it. Cartoons and memes that followed the report highlighted Trump's own multiple chins.
"Where necessary and appropriate, I will back primary rivals who espouse Making America Great Again and our policy of America First".
"This is a big moment for our country", Trump wrote, "and we can not let it pass by using third rate "leaders" to dictate our future".