A us citizen by birth, can he visit Canada traveling by car with a valid driver's license only or does he need his passport?

Can a US born citizen travel to Canada by car just with picture ID valid Drivers License only, or you have to have the US Passport? Please answer and I do appreciate your reply

As of the middle of last year, everyone entering canada from another country is REQUIRED to have a passport. Without one, you can't get across the border.