Conservative: In conformity with fact. It's being honest and telling the truth about economics truths.
Liberal: Being right is politically incorrect. You cannot speak the truth about taxes, socialism, liberalism, progressivism. You cannot call us out on the facts, because the facts are the antithesis of liberalism. You cannot say that high taxes result in less money to the government, not more. You cannot say the truth about how Harding, Kennedy, Reagan and Bush II all turned bad economies around fast with tax cuts. You cannot say the truth that the reason Reagan didn't reign in spending during the 1980s was because democrats reneged on their promise (passed by law) to cut spending. You can get into trouble for being wrong. If you complain about liberal taxes, you can get into trouble.