'Not going to work': Ex-GOP insider says 'pessimistic' Trump campaign doomed to fail

One-time GOP insider David Frum, who worked as a speechwriter for former President George W. Bush, predicted that Donald Trump's "pessimistic" presidential campaign will ultimately fail.

During a recent interview on The Rest is Politics podcast, Frum argued Trump's message to America was very similar to that of Hungarian President Victor Orban, who presented himself as a Bulwark against a frightening outside world.

"He's behaving as if America has not been a success," said Frum. "That...