In the WSJ, Marco Rubio says Obama hasn't been tough enough with China on economic issues:
President Obama has continued to appease China’s leaders ...[with] his insufficient responses to economic ... concerns
What would he do?
For years, China has subsidized exports, devalued its currency, restricted imports and stolen technology on a massive scale. As president, I would respond not through aggressive retaliation, which would hurt the U.S. as much as China, but by greater commitment and firmer insistence on free markets and free trade. This means immediately moving forward with the Trans-Pacific Partnership and other trade agreements.
So, unlike Obama, who wants to move forward immediately with the TPP and other trade agreements, he'd move forward immediately with the TPP and other trade agreements.