What are tariffs really supposed to do if they're not stopping imports like aluminum from Canada?

Do you think Karoline Leavitt is "gaslighting" the American people by accusing the Biden administration of lying to the public?
Will other countries follow Russia's lead in legalising cryptocurrency for foreign trade settlements?
Are the tactics of those who projected images of Donald Trump and Jeffrey Epstein onto Windsor Castle a legitimate form of free speech or just childish behavior?