The tweet comes after Corker drew attention Wednesday by saying, "I think Secretary [Secretary of State Rex] Tillerson, Secretary [of Defense Jim] Mattis and chief of staff [John] Kelly are those people that help separate our country from chaos."
Trump on Sunday morning used Twitter to slam Corker. The senator's second term will end in January 2019, and and he has said he won't run for re-election.
The president claimed in his tweets that after he turned down Corker's requests for an endorsement and appointment as secretary of state, Corker decided not to run again.
In a statement to ABC News, Corker's chief of staff, Todd Womack, disputed Trump's claims.
"The president called Sen. Corker on Monday afternoon and asked him to reconsider his decision not to seek re-election and reaffirmed that he would have endorsed him, as he has said many times," Womack said.