Republican presidential candidate Mitt Romney is a conservative. At least, that is the point the former Massachusetts governor is trying to make with a new TV ad airing in Iowa. The new ad, titled “Conservative Agenda,” shows Romney speaking on the stump and meeting with voters, as he makes a series of commitments. “I am going to do something to government. I’m going to make it ‘Simpler, and Smaller, and Smarter,’” Romney says. “Getting rid of programs, turning programs back to states, and finally making government itself more efficient.” Romney pledges to repeal President Obama’s health care overhaul and balance...