While there’s variation between polls, the general picture is that for every American who really loves Donald Trump, there are about two Americans who really hate him. That’s what produces the election results we’ve seen all over the country in recent months, where Democratic candidates dramatically over-performed compared to how they’ve done in recent elections. Trump is such a powerful presence that he nationalizes every election to at least some degree, which is bad news for his party. Now let’s think about how this picture of energized, angry Democratic voters and Republican voters who still support Trump but aren’t so enthusiastic about it could play out in November. Despite the fact that the president is on everyone’s mind, the calculation is different for voters of the two parties. A Democrat can deliver Trump a crushing blow with their vote, because if their party takes back one or both houses of Congress, the effect will be seismic. Not only would the GOP legislative agenda be immediately dead, but with their newfound subpoena power Democrats could start investigating this administration from tip to tail.
Source : http://napavalleyregister.com/opinion/editorial/guest-editorial-trump-is-historically-unpopular-but-the-intensity-gap/article_8f0ae0c7-599d-54bb-b8f7-d084dea355d6.html