How a Democratic Congress could reshape Trump's Iran and Ukraine policy

Democrats winning control of Congress could increase scrutiny of President Donald Trump's handling of the Iran and Ukraine wars, while he retains broad foreign-policy powers in his final two years. Experts told CNBC the shift may intensify oversight and spending challenges. The Associated Press projects Democrats will hold a Senate majority, flipping seats in Iowa, Kansas, North Carolina, Ohio, South Carolina, and Texas, and they also won the House. This gives the party greater scope to shape spending and challenge Trump's agenda, though binding measures over a presidential veto remain difficult. The Iran war, which began with U.S.-Israeli strikes on Feb. 28, was a major election issue amid high fuel and food costs. Democrats may use the "power of the purse" to limit military spending, while analysts note the president still executes foreign policy and is not a "lame duck."