US midterms – The races to watch

Americans will vote on November 3 to choose all 435 members of the House and decide a series of Senate contests, determining whether President Donald Trump’s Republicans keep control of Congress. Democrats need a net gain of four Senate seats and at least 218 House seats to take majorities. Eight closely watched Senate races include contests in North Carolina, Texas, Ohio, Maine, Alaska, Iowa, Kansas and Michigan. High living costs, the war with Iran and Trump’s poor approval ratings have helped Democrats, but polling errors, redistricting and record campaign spending leave the outcome uncertain.