A senior Democrat on the congressional Joint Economic Committee next week will preside over a hearing on President-elect Trump's tariff plans. Rep. Don Beyer (D-VA), the senior Democrat on the bicameral panel, will lead the Dec. 18 hearing, titled " Trade Wars & Higher Costs: The Case Against Trump's Tariffs ." The panel is chaired by Sen. Martin Heinrich (D-NM). Control of the committee's gavel switches between the House and Senate every Congress. Trump has repeatedly threatened to impose tariffs...