Ground game war + An uncertain Hispanic vote + Reid’s obsession = Who knows?

For a while, it did not seem that Catherine Cortez Masto, a Democrat who is a former state attorney general, would catch up to Representative Joe Heck, a Republican who seemed a good fit for his state and this cycle. But Mr. Heck, by turning away from Mr. Trump after the presidential candidate was heard bragging about sexual assault in a 2005 recording, began to lose some of his base support, living every Republican candidate’s nightmare. The Hispanic vote, important here, is hard to poll. But Ms. Cortez Masto is now narrowly ahead in the race, a battle for the seat of Senator Harry Reid in which the retiring Democratic leader has unleashed his political machine in support of her.