President-elect Donald Trump vowed Monday to slap punitive tariffs against Canada, Mexico and China, citing allegations that drugs and undocumented immigrants were entering the United States via those countries.

The 25% proposal marked an escalation from his campaign claims, as the ex-president previously proposed raising tariffs by 10%, or by 60% on goods imported from China—which is up from approximately 1% and 11% now, respectively, according to data from research firm Wolfe Research cited by the Wall Street Journal.

If enacted, they would violate the 2020 deal that the United States inked with Canada and Mexico during Donald Trump’s first term.