Failed in the sense that it is now the party of trump. That it would pick such an unqualified and corrupt individual as its leader. And then use all its power to shield him from accountability. What came before is dead. After trump is gone the party isn't going back to what it was. The racists among republican voters won't support that. They don't give a crap about individual power over the state. They are perfectly happy with using the state's power to maintain white supremacy and won't support any politician who disagrees with them. And there are too many of them for republicans to be viable otherwise.