Overall, the CNN poll shows 30% of Republicans and GOP-leaning independents disapprove of Trump. The big one: the economyWithout question, the most troubling numbers for Trump and the GOP concern the economy. And 30% say they're either "pessimistic" or "afraid." And just before former President George W. Bush's reelection in 2004, only 5% of Republicans and GOP-leaning independents said the same about him. That poll showed 81% of Democrats and Democratic-leaning independents said their midterm vote would be a vote against Trump, compared to just 44% of Republicans and GOP-leaning independents who said theirs would be a vote for Trump.