In a crowded campaign office in Seoul, young, trendy staffers are using deepfake technology to try to achieve the near-impossible: make a middle-aged, establishment South Korean presidential candidate cool.

Armed with hours of specially-recorded footage of opposition People Power Party candidate Yoon Suk-yeol, the team has created a digital avatar of the frontrunner – and set "AI Yoon" loose on the campaign trail ahead of a March 9 election.