Tariffs are back at the center of U.S. trade policy, with President Donald Trump recently imposing new duties on 60 trading partners, including Japan.But the larger question is not whether tariffs will define Trump's remaining time in office. It is where U.S. trade policy is likely to go after he leaves.Here are three plausible scenarios for the post-Trump trade era. My baseline case is the middle one.Full Trump-style policy continuity is unlikely but not implausible, a 20 percent probability. Full Trump-style policy would mean the next president keeps tariffs at the center of trade policy,…READ FULL ARTICLE