President Trump mocked Democratic nominee Joe Biden’s appearance and use of a face mask on Tuesday as the first presidential debate draws nearer, The Hill reports.

His comments come a week before Trump and Biden will debate in Cleveland on Sept. 29. The Trump campaign has repeatedly attacked Biden’s cognition, dubbing him “Sleepy Joe” early on. 

“I’m looking forward to getting on the debate stage with Trump and holding him accountable. I think I know how to handle bullies — we’ll find out,” Biden said at a campaign fundraiser last week.