It's been known for months that those tests provide unreliable results, this isn't new. He's just trying to gin up more conspiracy theories.
Side-note the news sources you people use are astonishing but hey, FAKE NEWSSSSSS!!!!!
Use real news sources, oh hey look NPR knew about this and published an article about it a month and a half ago!
https://www.npr.org/sections/health-shots/2020/10/01/915793729/can-the-u-s-use-its-growing-supply-of-rapid-tests-to-stop-the-virus
Link: https://mediabiasfactcheck.com/the-post-millennial/