Poll: Economic satisfaction under Trump isn't helping his party's 2018 chances

By a whopping 25-point margin, voters say they’re more likely to back a congressional candidate who promises to serve as a check on President Donald Trump, according to a new national poll from NBC News and the Wall Street Journal…

At the same time, six-in-10 are satisfied with the U.S. economy, and a plurality of voters give Trump credit for the economic improvement.

Despite that economic optimism, however, the poll shows that Democrats enjoy a 10-point advantage on congressional preference, with 50 percent of registered voters wanting a Democratic-controlled Congress, versus 40 percent who want a GOP-controlled one.

Democrats held a 7-point edge on this question back in April, 47 percent to 40 percent.