Trump says Biden 'is not fit to serve': 'Who is going to be running the country for the next 5 months?'

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Former President Trump said President Biden "was not fit to run for president" and is not — and "never was" fit to serve.

The Republican presidential nominee was reacting to Biden’s stunning announcement Sunday afternoon that he is suspending his re-election campaign.

"He is the worst president in the history of our country," Trump told Fox News Digital in a phone interview Sunday afternoon. "There has never been a president so bad."

"He is not fit to serve," Trump continued. "And I ask — who is going to be running the country for the next five months?"

The former president also reportedly told CNN on Sunday that he believes Vice President Kamala Harris would be easier to defeat in November's election.

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Trump also posted on his Truth Social Sunday afternoon, writing, "Crooked Joe Biden was not fit to run for President, and is certainly not fit to serve — And never was! He only attained the position of President by lies, Fake News, and not leaving his Basement."

Trump said that "all those around him, including his Doctor and the Media, knew that he wasn’t capable of being President, and he wasn’t."

"Now, look what he’s done to our Country, with millions of people coming across our Border, totally unchecked and unvetted, many from prisons, mental institutions, and