There’s less than five months to go until the American presidential election. And the race between Joe Biden and Donald Trump is neck and neck, with one recent poll putting Trump ahead by less than one point.  Both are geriatric candidates. And they face the same challenge. How will they attract the youth vote?  Today, world editor Nick Ralston, on which young celebrities are most likely to sway voters. (A hint: it’s no longer Taylor Swift.) And whether former Neighbours star Holly Valance might influence a political shift to the far right.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.