And the Republicans have run more than a few actors for jobs like senator, governor and even president.
Notably, President Ronald Reagan's 1984 reelection campaign wanted to use the song "Pink Houses" at campaign events. And John McCain's 2008 presidential campaign did indeed use it, even as Mellencamp explained that the Arizona senator might not fully "get" the point of the song about working families living on the backroads of America.
So Mellencamp has already crossed some partisan and ideological lines.
That's more than can be said for most Senate prospects -- be they Democrats or Republicans.
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