Why is Obama hitting the campaign trail 10 days before the midterms?

Barack Obama is back on the trail, starting with rallies in Cleveland and Detroit. He is backing Democrats in Ohio and Michigan, and he says Donald Trump is to blame for the rising cost of living.

Obama also took aim at Republican Vivek Ramaswamy's ad featuring Amy Acton's estranged mother. He said: There's got to be something inside you where you say no office is worth stooping that low.

With 10 days until the midterm vote, early voting is already open in both states, and Obama is urging people not to wait. Polls give Democrats a slight lead in Ohio, though the races are expected to be close.