Trump and 2020 Democrats Stake Out Dueling Views on China Trade

President Trump has worked to sell voters on the idea that he can negotiate better trade pacts. Now, as talks drag, he says only he is tough enough to walk away from a bad deal.
Democrats jockeying to face him in 2020 are making the opposite argument as talks with China hit an impasse—that the administration’s performance on trade demonstrates why Mr. Trump is the wrong person for the job.
Mr. Trump on Friday sought to ease tensions over trade with allies such as Canada, Mexico and the...