I have had the distinct pleasure of serving with Senator John McCain for the last 12 years in the U.S. Senate. Yet just as important to me as our shared years of service is our common respect for the conservative principles that have guided us in representing our state. That is why the characterization of John McCain as something other than a common-sense conservative is disturbing to me. Senator McCain’s detractors overlook his actual voting record of supporting conservative values. During my time in the Senate with John McCain, we have cast the same vote nearly nine times out of...