“President Donald Trump’s poor approval rating continues to weigh down his party ahead of the midterms — though the GOP has a slim measure of separation from the president, with Democrats holding a 5-point lead in the battle for control of Congress,” according to a new national NBC News poll.“The poll found 49% of registered voters say they prefer to see Democrats control Congress as a result of this year’s elections, compared to 44% who prefer Republican control and 7% who are unsure.”