Rove writes on 2016 Republican presidential nomination race in the Wall Street Journal:
All of the likely candidates have won in a state or district, but that's nothing like a start-to-finish presidential contest. Some candidates have experienced this grueling process, but everyone will benefit from road-testing themes, messages and applause lines. They need to avoid saying stupid things and reinforcing stereotypes. In politics, practice doesn't make perfect, but it does make better.