London (CNN) The UK's election campaign hasn't officially started yet. But that didn't stop US President Donald Trump from weighing in on what's expected to be one of the most unpredictable election campaigns in living memory.

Trump told London-based talk radio station LBC that Jeremy Corbyn, the leader of the UK's main opposition Labour Party, would be "so bad for your country ... he'd take you into such bad places."

The President told LBC host and Brexit Party leader, Nigel Farage, that he had "great relationships with many of the leaders, including Boris (Johnson), who's a fantastic man. And I think he's the exact right guy for the times."

He went on to predict that Johnson and Farage would work together to deliver Brexit.

"I know that you and him will end up doing something that could be terrific ... if you and he get together it's an unstoppable force ... I wish you guys could get together, I think you'd be a great team," he added.

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