Despite the glut of articles decrying the Democrats lack of vision, message, unity etc., when it comes to rank and file "enthusiasm" for voting for Democratic candidates, the Party is in exceptionally-good shape. According to the most recent Pew Research Center poll conducted 6/14-19, Democrats hold a "sizable" voter enthisiasm advantage over the GOP, with 46 percent of Democratic RV's saying they are "more enthusiastic about voting than usual," compared to just 30 percent of Republican RV's saying the same. As the Pew report concludes:

...the level of enthusiasm about voting among Democrats is unusually high, and is atypically low among Republicans. In fact, Democrats now hold a voter enthusiasm advantage that is the mirror image of the GOP's edge in voter zeal leading up to the 1994 midterm election.

...What is particularly notable this year is the anti-incumbent sentiment expressed by independent voters. Fully 38% of independents want their member of Congress to be replaced, significantly more than said the same in 1994 (29%).

The poll also found that 51 percent of Americans favor the Democratic candidate in their district, compared to 39 percent favoring Republican candidates.