I don't read whole web pages anymore when someone here links to them because I've found that most of the time, nothing on the web page supports the assertion being made.
I agree, he should have given the following quote (from the webpage he linked) and given the url as a reference.
> Vance has said he considers Yarvin a friend and has cited his writings in connection with his plan to fire a significant number of civil servants during a potential second Trump administration.
Also, you haven't stated an assertion.