Business SummaryBrief at 2:47 p.m. EST

Democrats’ sweeping midterm victory sent ripples across Wall Street this week, reshaping sector moves tied to policy expectations. Shares linked to the artificial intelligence boom fell as investors worried a Democratic Congress could slow additional development of data centers. Defense and oil companies dropped on expectations that Democrats would push for an end to the U.S.-Iran war, a change seen as likely lowering energy prices. Hospital stocks rose, supported by hopes that funding for several government programs could be restored or increased. Meanwhile, liquor and other companies hit by tariffs moved higher on expectations of relief.