Donald Trump refused on Friday to condemn recent racist and conspiratorial comments from right-wing provocateur Laura Loomer, who traveled with him earlier this week to Tuesday night’s presidential debate and several 9/11 memorial events.

“Laura’s been a supporter of mine,” Trump told reporters at a press conference near Los Angeles, where he was pressed on concerns from Republican allies about his ongoing association with Loomer, who once declared herself a “proud Islamophobe” and has a long history of promoting ugly and extreme conspiracies.