No, it is hard to convince liberals of anything, true or false, because they use committees, spreadsheets, academic studies, science, etc. Liberals make everything complicated. And because all complex system contains inconsistencies, they are forever crazy mad from trying to get closure on universal consistency.
Conservatives are gut feel people, aligned with their allies, getting info from "trusted sources". They don't do consistency checks, ie calling anti-Trumpers liars as though that disqualified everything they say, while explaining and excusing an ocean of lies from Trump, even just the things where there are recordings of him saying two opposite things.
To get liberals to believe something, you need studies, debate, info, logic, and all that from multiple sources.
To get conservatives to believe something, you just need to get Trump, Fox, Sinclair to say the same things. For example, they say stopping illegal immigration will reduce rape and murder. While it is true that some illegal immigrants have raped and murdered, the number is tiny compared to the total number of rapes and murders. Even a completely effective wall would have minimal effect on rape and murder rates, yet they are all talking about it.
Liberals would never call themselves "dittoheads".