President Donald Trump called out Kamala Harris on Twitter for skipping a forum at a historically black college Saturday, because the institution had previously honored the commander in chief for his past work on criminal justice reform.

“Badly failing presidential candidate @KamalaHarris will not go to a very wonderful largely African American event today because yesterday I recieved [sic] a major award, at the same event, for being able to produce & sign into law major Criminal Justice Reform legislation,” Trump wrote.

The law “will greatly help the African American community (and all other communities), and which was unable to get done in past administrations despite a tremendous desire for it,” he added. “This and best unemployment numbers EVER is more than Kamala will EVER be able to do for African Americans!”

Harris had been scheduled to speak at the Second Step Presidential Justice Forum at Benedict College, but dropped the event Friday.

“I cannot in good faith be complicit in papering over his record,” she said in a statement after she learned the college had honored the president.

The First Step Act, President Trump’s bipartisan criminal justice reform bill, has been one of his signature legislative achievements and brought him into close collaboration with Kanye West and Kim Kardashian.