"There's the potential absolutely of Nevada turning blue this year, if they can get the turnout", said David Damore, a political-science professor at the University of Nevada, Las Vegas.
FILE PHOTO: Senator Heidi Heitkamp (D-ND) discusses farm policy with a reporter at Jamestown College, Jamestown, North Dakota, U.S. April 6, 2018.
Comstock is facing a primary challenge of her own, from conservative challenger Shak Hill.
Under the system, used now in a few local jurisdictions, the election is over if one candidate wins a majority.
The Real Clear Politics Average of Polls now shows the Democrats with a 7.6 point generic ballot advantage, barely above the five point generic ballot advantage most political analysts say Democrats need to break even, due to Republican success in state legislatures gerrymandering Congressional Districts after the 2010 census. Scott Hammond and former reporter Michelle Mortensen.
This office is now held by Donald McEachin.
Nevada also has an interesting governor's race, with six Democrats and seven Republicans vying to run for a position that's been controlled by the GOP for almost 20 years.
There are two candidates on the Republican side. Clark County Commissioners Steve Sisolak and Clark County Commissioner Christina Giunchigliani are the front-runners among Democrats.
The state's tightest House race is in the 10th district, which includes part of Northern Virginia. Voters may chose the primary in which they want to participate.
GOP Sen. Dean Heller also faces a likely tough race from Democratic Rep. Jacky Rosen, who faces no serious primary opponent, in an outcome that could determine control of the U.S. Senate.
Of the 435 seats in the lower chamber of Congress, 336 are not competitive-180 held by Democrats, 156 held by Republicans, according to the Cook Political Report's ratings. The victor will face incumbent Rep. Dave Brat (R - 7th District). But Hillary Clinton carried the district easily in the 2016 presidential race, so many analysts believe an energized Democratic base could carry the day in November.
The District Four congressional seat, including Chesterfield and Powhatan, is now held by Democrat Don McEachin. And in the unlikely scenario that neither candidate reaches 50 percent (a kooky Bernie Sanders supporter and perennial Democratic candidate is also on the GOP ballot so it's possible in a very close race), Trump's endorsement could have a much larger impact. Ed Gillespie won this district last November 54%-45%.
Now, whether you vote Democrat or Republican you're going to notice two questions on the ballot. Bernie Sanders in the 2016 Nevada Democratic caucus and later beat then-candidate Donald Trump in Nevada by about 2%, despite losing the election. Rep. Kevin Cramer is expected to take home the Republican nomination Tuesday night.