Paul spoke Monday at a North Dakota Republican convention of the five districts that cover the city of Bismarck. It was held at Bismarck's Shiloh Christian school.
Paul says the rising federal debt is the fault of both Democrats and Republicans.
He says the only way to reduce it is to drastically cut back the role of government. He says that means curtailing the nation's military presence overseas and rethinking federal entitlement programs.
Paul spoke in Williston, Dickinson, Bismarck and Jamestown on Sunday and Monday as part of a North Dakota campaign swing. North Dakota is holding GOP presidential caucuses March 6.