He "re-truthed" a post about how Nikki is ineligible to be president: https://truthsocial.com/@realDonaldTrump/posts/111721484609384209
Watch him mock the stutter, in context: https://www.dailymail.co.uk/video/news/video-3094861/Video-Trump-mocks-Joe-Bidens-stutter-Iowa-campaign-rally.html
Watch him mock McCain's arms, in context: https://www.cnn.com/videos/politics/2024/01/07/trump-mocks-mccain-injury-campaign-trail-ip-vpx.cnn