We have been engaged in a war against drugs for 30 years. We're plainly losing it. We have not achieved very much progress. The same problems come round and round."
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After the Indiana polls close, ITV News asked Ted Cruz supporters if they could back Donald Trump as the Republican presidential nominee.
With his massive victory in Indiana, Donald Trump can now not be stopped from becoming the Republican nominee.
Donald Trump is predicted to win the crucial Republican Indiana primary, US media have projected.