Are Trump’s campaign rallies energizing his base – or sowing doubt?

Given rambling speeches and personal attacks over policy talk, supporters wonder if events do more harm than good

As Donald Trump emerged to a thunderous roar of approval in the heart of Pennsylvania's Rust belt, he was back in his comfort zone among the people who once put him in power.

But by the time he stepped off the stage nearly two hours later, even some of the former US president's supporters were wondering whether his rallies are doing his re-election campaign more harm than good.