Presidential candidate Sen. Ted Cruz pledges to “stand up for fair trade” in a new state-wide Wisconsin ad hitting on international trade deals, a signature issue of frontrunner Donald Trump’s campaign. “Free trade” is generally seen as a globalist policy in which restrictions on imports and exports are kept to an absolute minimum. “Fair traders,” on the other hand, argue that purely free trade can have negative consequences for the citizens of a particular country, especially when it comes to wages and employment opportunities for the lower and middle classes. They recommend that sovereign nations negotiate and implement trade deals...