HAMBURG, Germany -- The U.S. continues to clash on specific trade policies with Europe and China, leaving in doubt how strong a unified stance the Group of 20 countries can take in the joint communique expected Saturday at their summit here.
"Should the U.S. introduce tariffs on European steel imports, Europe is ready to react immediately and adequately," European Commission President Jean-Claude Juncker told reporters Friday ahead of the two-day summit of leaders from major industrial and emerging-market nations.