It'll happen - deepfakes aren't good enough yet. But when they become ubiquitous and hard to spot, it'll be chaos until the average person is mentally inoculated against believing any video / anything on the internet.

I wonder if it's possible to digitally sign footage as it's captured? It'd be nice to have some share-able demonstrably true media.

Edit: I'm a centrist and I definitely would lean one way or the other based on who the options are (or who I think they are).