The Democratic senator Jon Ossoff called Donald Trump a “draft-dodging, crook president” while defending the senator Mark Kelly as a hero during a Tuesday campaign appearance in Georgia, escalating his public feud with the US president.

“I don’t think anything illustrates the times more aptly than that the draft-dodging, crook president, who has plunged our nation recklessly into a war he knows not how to end or to win, tried to imprison this man, who embodies American heroism,” Ossoff said while appearing alongside Kelly and his wife, the former Arizona congresswoman Gabrielle Giffords.

Kelly, a former navy captain, and five other Democratic lawmakers were attacked by Trump last year after they released a social media video saying troops are not required to carry out illegal commands.

Ossoff, who is currently running for re-election to his Senate seat in Georgia and is widely speculated to be eyeing a 2028 presidential run, has received viral attention on social media for his sharp criticism of Trump.