The new survey finds that 63% of voters hold an unfavorable view of the Democratic Party—the highest share in Journal polls dating to 1990 and 30 percentage points higher than the 33% who hold a favorable view.

That is a far weaker assessment than voters give to either President Trump or the Republican Party, who are viewed more unfavorably than favorably by 7 points and 11 points, respectively. A mere 8% of voters view the Democrats “very favorably,” compared with 19% who show that level of enthusiasm for the GOP. [...]

On the whole, voters disapprove of the president’s handling of the economy, inflation, tariffs and foreign policy. And yet in each case, the new Journal poll found, voters nonetheless say they trust Republicans rather than Democrats to handle those same issues in Congress. [...]

Voters have significant concerns about the centerpiece of Trump’s agenda—his immigration policies—opposing some of his deportation tactics by double-digit numbers. And yet they trust congressional Republicans more than Democrats on immigration by 17 points and on handling illegal immigration by 24 points. [...]

At about this point in 2017, more voters called themselves Democrats than Republicans by 6 percentage points in Journal polling. The Democratic tilt meant that many Republicans, in a sense, were running uphill even before they started, depending on the makeup of their House district.

Now, more voters identify as Republicans than as Democrats, a significant change in the structure of the electorate—and a rarity in politics. Republicans last year built their first durable lead in more than three decades in party identification, and they have maintained that lead today. In the new Journal survey, more voters identify as Republicans than as Democrats by 1 percentage point, and the GOP led by 4 points in the April poll.