> exercise editorial discresion
Adding a fact-check link to a Tweet is not censorship. Nobody took Trump's link down. And Twitter has a 1st Amendment right both to comment on what it wants to comment on, and to avoid commenting on what it doesn't want to comment on -- regardless of what their reasoning behind those decisions is.
Again, Republicans should be applauding this. Open dialog is what you wanted, right? You wanted no censorship, just open debate. Well that's what you got. Twitter didn't censor the post, they debated it. And they have every right to do so.
If your argument is that Twitter needs to be 100% politically neutral every time it makes a comment on anything, and that its editorial staff shouldn't have the ability to form opinions or choose what they comment on, then that's the Fairness Doctrine, regardless of what you want to call it.
It is of course also legal for Twitter to choose how they outright censor content because of Section 230, but I give Republicans a little bit more slack over objecting to that protection, since at least Section 230 isn't literally a Constitutional right. But anyone who wants to complain that companies should be required to be "fair" when adding political annotations is not someone who supports the 1st Amendment.