https://arstechnica.com/tech-policy/2019/10/twitter-nixes-trump-nickelback-meme-after-dubious-takedown-request/

Twitter has removed a video from a tweet by Donald Trump in response to a Digital Millennium Copyright Act takedown request from Warner Music Group. The video modified a short clip from the Nickelback music video "Photograph" to criticize former Vice President Joe Biden. Biden is seeking the Democratic nod to challenge Trump in the 2020 election.

Cornell University legal scholar James Grimmelmann told Ars that Donald Trump has a strong fair use claim. The video only used a few seconds of the Nickelback music video, and it does so in a way that poses no threat to sales of the original song—two factors that typically point toward a finding of fair use.