The best way to stop Trump is to vote for Ted Cruz
Why wait until April 5. They should be pulling an all out effort to defeat him in every primary. There are apparently many undecided voters in both the Arizona and Utah primaries that need to understand what a disaster Trump would be as the GOP nominee. In recent elections, the undecideds have been breaking away from Trump, but Ted Cruz is the only alternative with a realistic chance of defeating him before the convention.