For months now, enthusiasm among Democratic voters has been a dominant 2018 theme in polls and interviews. Now that the primaries are over, a look at the total primary vote in U.S. House races this year shows that the chatter is more than just talk.
Democrats have been turning out in record numbers this year, and midterm history suggests that could have real significance in November. CONT.
Dante Chinni & Sally Bronston, NBC News
