I believe the right still protects free trade. The argument that Trump makes is that free trade isn't really free or fair at the moment as other countries are duping the US into massive trade deficits each year. So now protectionism plays a part to try and offset that trade deficit.
http://www.tradingeconomics.com/unit...lance-of-trade
Can Trump successfully strike a free trade/fair trade balance? He withdrew from TPP because it favors Asia too much. Now it's up to Japan to save the deal.
Trump will argue that The U.S. deficit with China has ballooned from $80 billion in 2000 to $350 billion in 2015. This is a total of $3.6 trillion in deficits with China. During this same period, the U.S. lost 5 million manufacturing jobs.