It seems to me that in every presidential election, every candidate picks a "theme song" — some popular tune with a lyric that conveys hope and better days ahead — to be played at rallies and when the candidate is approaching or leaving the podium…
…and no one at the campaign ever bothers to check with the song's composer to see if that's okay with them. You'd think they'd do that just to avoid the awkwardness that comes when the composer makes a statement like this one. Which happens all the time.