When you click the blue warning on the tweet, it does exactly that...?

That's actually pretty funny, I did click on that warning on some voter fraud allegations and here is what it said:

    What you need to know
    - Voter fraud of any type is incredibly rare in the US, according to The Associated Press and Reuters
    - US officials say the 2020 US election will be more secure than the 2016 US presidential election
    - US officials confirm that foreign governments are trying to influence the US election, but that foreign governments' interference is mostly relegated to launching misinformation campaigns
    - Experts say US elections are 'resilient'

And then it lists some articles, that just like the tl;dr version above, did not disprove anything that was actually being said in tweets labeled with these warnings.

It's really bad. Laughably bad. It might only confirms your biases if you already believe that the allegations are false, but if you haven't formed an opinion yet - I assure you, no one is ever going to be convinced by this. A lot of people are now treating those factcheckers as a complete joke that cannot be taken seriously. But I don't know, this is just what I noticed by observing this entire thing, make of it what you will.

I didn't know. Not on twitter as much, I'll inquire further.

Just go on Donald Trump's Twitter feed, and click on all the various warnings...(also note that none were "censored"--some just have a warning appended, and others were hidden by default with a warning, and you have to click it to see the tweet.)