As North Korea clears hurdle after hurdle in its race to obtain nuclear weapons, a foreign policy adviser to U.S. presidential candidate Donald Trump has called for the U.S. to review its objectives.

Former Rep. Pete Hoekstra, who once headed the House Intelligence Committee, told a forum in Washington on Tuesday that the dual-track strategy of sanctions and patience have not worked.

"You now have a North Korea with nuclear capabilities," he told a discussion organized by the Korea Economic Institute of America. "None of us wanted that. None of us expected that to happen, but it has and that's the new reality."