Nor does either side have an edge in enthusiasm: Eighty-four percent of anti-Trump registered voters say it's extremely or very important to them to vote to oppose him in the midterms.
One major trend we have seen over the last 50-75 years is that even when a President is elected, while his party has control of the House and Senate, the following mid-term election quickly changes this. Just 38% said they wanted Congress to remain in control by Republicans, while 10% of those surveyed said that they had no opinion.
The Democrat party and its supporters agree on values and goals.
Thirty-five percent of Democrats said then that they were more likely to become involved in political causes in the next year, compared with 21 percent of Republicans and independents. At present, based on FiveThirtyEight's poll aggregation, Trump is viewed favorably by about 39 percent of the American public, and unfavorably by about 56 percent.
But as President Trump and Senate Republicans are learning to their great displeasure, that was not the case.
A report by the University of Virginia's Center for Politics last month suggested that if Democrats maintain at least a six-point advantage on this question, they would be predicted to win enough congressional races to take control of the House in 2019.
The poll, conducted from July 13 to 15, found that 81 percent of Democrats rank a Trump-Russia probe well ahead of a number of national priorities, perhaps suggesting the nearly six-month-old administration has further distracted the public from serious problems. Of the 33 seats in that chamber being contested, 25 belong to Democrats or independents who caucus with them.