Neil Young’s “Rockin’ In The Free World” is an obvious choice for a presidential campaign theme song, so it’s no surprise that the debate over who gets to use it is highly contested. When Donald Trump declared his candidacy while the song played last week, Young demanded that the billionaire relinquish any right to use it. Though Trump’s campaign claims to have used the song rightfully, the opposing party argues otherwise. Over the weekend, progressive democrat Bernie Sanders held a rally in Denver, where he was introduced while “Rockin’ In The Free World” played throughout the gymnasium. Young has made it clear that he intends to support Sanders in the forthcoming election, and that Sanders chose the song with Young and his manager’s full permission. Watch Sanders’ “Rockin'” entrance below (around 5min in) and read more here.