“As the unofficial start of the campaign sprint kicks off on Labor Day Monday, President Donald Trump’s deep unpopularity is imperiling Republican chances of maintaining their narrow majorities in Congress with just two months before November’s midterm elections,” Reuters reports.“Midterm elections, above all, are a referendum on the occupant of the White House, according to election experts. That is even more of a truism in the era of Trump, who has spent the better part of a decade as the country’s dominant political figure and could face stiff political headwinds in his final two years in office.”