The article suggests that California's top-two open primary could lead to a November election where no Democratic candidate for governor is allowed on the ballot. This could result in the choice of only two Republicans, both supporters of President Trump. The current system allows voters to choose any candidate regardless of their party. However, this could require voter approval for future elections. Political data guru Paul Mitchell suggests that the current system is undemocratic and that returning to a more varied system could allow a third or fourth candidate to emerge from minority parties. The article also notes that a recent poll showed both Republicans leading the field with 16% and 14%.