On '' The Glen Campbell Goodtime Hour '' television show , Campbell avoided political topics . Around this time , in interviews he described himself as " a registered Democrat " but also said he " voted Republican a few times , " and he performed in support of both Republican and Democratic politicians . Campbell performed the National Anthem at the 1980 Republican National Convention and continued to make a number of campaign appearances for Republican candidates during the 1980s and 1990s
1980 Republican National Convention
1980 Republican National Convention
Glen Campbell