We tend to argue back against lies: it is absurd to think that Democrats cheated in Republican-run Arizona and Georgia. Arguing back on social media often just drives attention to an issue, making it clear what the sides are.
How Will That Work
Questions are one of the most powerful tools for mind-changing conversations. Asking someone why they believe in something, encouraging them to list the reasons (so you can argue with their reasons) is not typically effective. Instead of asking someone why they believe in a certain policy, especially a complex one, ask them to explain how their policy will work.