Biden released a 14-second clip on Wednesday in which he finally agreed to debate Trump — after dodging the possibility for months. Biden closed out his highly-edited video by mocking Trump’s limited availability to — simply put — be a presidential candidate.

“So let’s pick the dates, Donald,” Biden said. “I hear you’re free on Wednesdays.”

Biden’s campaign doubled down by releasing a $32 T-shirt that says “Free On Wednesdays.”