That typically people who identify as conservative often take positions that are at odds with things that should be accepted as objective fact.
Saying "the Earth is getting warmer on average every year" should not be a political statement. But here we are, where you have one group of people who have a vested interest in denying that fact. To profess the fact that our planet is warming and that it is an issue is to implicitly identify yourself as a "liberal".
Black people are disproportionately punished by the legal system for the exact same crimes committed by people of other skin colors. There's actual data showing this. But to bring this up gets you labeled as a "liberal".
To remark that police treat white people who are known to be criminals better than black people who aren't even engaged in suspicious behavior is easily documented. Mention this and you will be called a liberal.
And denying this does no favors to liberals or conservatives. Because even the batshit insane liberals get to trout out that line about "truth having a liberal bias". Because, for the most part, it's not wrong. But conservatives get to mock the statement by using it against the most radical of ideas that are generally seen as "liberal".
But what are we gonna do? If hard facts and reliable information could actually change minds, we wouldn't have Trump as President. You wouldn't have his legions of followers denying that he's doing the very things he is doing. I don't care if you're Republican or Democrat, Trump is not only unfit for the office, he's a criminal. The Republican party should be ashamed that he's representing them in the Executive branch.
But they're not.