The concert is part of an initiative that five living former presidents created after Hurricane Harvey struck southeast Texas.
Bush's spokesman said the former president and his wife didn't vote for Clinton or Trump, but he declined to give any other information.
Bush 41 may be the classiest presidential loser in history.
A recent Gallup Poll found voters were less likely to vote for him after the RNC.
It's not really a surprise. Donald Trump has bashed Jeb Bush and President George W. Bush a lot during the primary.
The Republican primary debate over illegal immigration played out very differently in 1980 than it's playing out now.