Hunter Biden sat in court on Wednesday and watched his ex-wife Kathleen Buhle and former romantic partner Zoe Kestan testify about his past drug use during his gun trial in Delaware.

Buhle, with whom Biden has three daughters, said she first learned of Biden’s drug use in 2015 and that she sometimes found drug paraphernalia in his car, including in 2018, according to reports from the courtroom.