Democrats in Congress are preparing to challenge President Trump’s policies aggressively following their sweeping election victories, aiming to dismantle key parts of his agenda and limit his influence in his final two years. With new majorities in both chambers, they plan to push back on Trump’s foreign policy, including efforts to end the conflict with Iran, which voters have widely criticized. The shift in power signals a direct confrontation between the White House and Capitol Hill as Democrats seek to reshape priorities. Their strategy could redefine the remainder of Trump’s presidency as a period of legislative resistance.


Senate and House Democrats are gearing up for a multifront war with President Trump over the next two years, vowing to use their new majorities after Tuesday’s landslide wins to unwind as much of Trump’s agenda as possible and cement his status as a lame-duck president. Ending the war with Iran — which voters blamed...