And not just income tax for income in the USA. You need to pay income tax where ever you earn it.
So if you are a Canadian, working/living in the USA, you pay no Canadian income tax. If you are an American, working/living in Canada, you still have to pay American income tax on your foreign earnings. There is no magic citizens immunity from paying taxes.
Unless you are a Biden and "earning" income through bribes and embezzlement.