In a tweet, Prince's representatives state the artist's estate "will never give permission to President Trump to use Prince's songs." It also includes a copy of a letter dated October 15, 2018, in which there is a clause that clearly stipulates Trump is not to use the song or any of Prince's music at campaign events.
"Without admitting liability, and to avoid any future dispute," the letter states, "We write to confirm that the Campaign will not use Prince's music in connection with its activities going forward."
President Trump played Prince's "Purple Rain" tonight at a campaign event in Minneapolis despite confirming a year ago that the campaign would not use Prince's music. The Prince Estate will never give permission to President Trump to use Prince's songs. pic.twitter.com/FuMUPzSWOe— Prince (@prince) October 11, 2019
Despite this stipulation, the Trump team has clearly gone back on its promise, as "Purple Rain" was indeed played at the rally. You can see footage below.
Playing Prince before a Trump rally in Minneapolis is sacrilege pic.twitter.com/NPyrLqGWTJ— Aaron Rupar (@atrupar) October 11, 2019
Whether Prince's estate plans to take legal action against the president is so far unclear.