Billionaire former New York Mayor Michael Bloomberg, who personally invested US$110 million to help Democrats this year, largely in the House, has seized on voter education levels in picking target races, according to senior aide Howard Wolfson.
Other big races are Republican Pete Stauber's bid to flip a House Democratic stronghold in Minnesota, while Democrats in Florida and Georgia are aiming to become the states' first African-American governors.
But what if that doesn't happen? The Republicans control both houses of Congress - the midterms provide the Democrats with a chance of clawing back some political control.
The Daily Beast has examined that "unthinkable" scenario in some depth. I don't care what the fake media says. Trump's enemies are gambling everything on winning.
The Trump administration now holds power in all branches of government - the presidency, the Congress and the Supreme Court - and if Democrats were to take back the House, they could put a pin in much of Trump's agenda.
Nate Silver's FiveThirtyEight gives Democrats an 87.8 percent chance of capturing control of the House as of this writing.
As a result, we've shifted the Trump-o-Meter to "Sad!" So to the extent that the polls were wrong in 2016, polling models have been corrected. It all depends on how accurately they have predicted voter turnout.
OneNewsNow is working alongside its sister organization, American Family Radio, to provide live election night coverage from Tim Wildmon, president of the American Family Association, and Fred Jackson, news director of American Family News, as well as other familiar AFA voices. "With Donald Trump doing so well, with Trump doing awesome things - restoring American greatness, restoring the American economy, restoring America's goal and dominance in the world".
That is reflected in the early vote totals for these midterms, which are high. That playing field, more and more people - average, ordinary Americans - see this unfairness, and it's just basic unfairness. Whenever a voter on the line said they were backing Democrats, volunteers rang a bell and burst into cheers. "And especially in the House where a simple majority gives you nearly absolute power to again set the agenda and get bills across the floor".
With that in mind, unusually high voter turnout could be a good sign for them.More news: United Nations says war-torn Yemen living hell for children
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"If the radical Democrats take power they will take a wrecking ball to our economy and our future", Trump declared in Cleveland, using the same heated rhetoric that has defined much of his presidency.
He said Democrats could pick up six to 10 seats, which could have a major effect on redistricting in 2020. What if all the pollsters and pundits have missed a surge of silent Trump supporters?
Sanders offered a less restrained version of progressivism, which resonated with millions of Democratic voters.
Still, his xenophobic rhetoric has been unprecedented for an American president in the modern era: "Barbed wire used properly can be a attractive sight", Trump told voters in Montana.
While some Democrats have anxious that putting Pelosi at the party's helm hurts them in GOP-leaning districts, the longtime leader insisted she wasn't bothered by what she described as her "vilification around the country" in Republican attack ads. "We are the Democratic Party", he said.
When the Democrats lost the House in 2010, they rapidly saw President Barack Obama's legislative agenda die. The Tea Party movement grew as a response to that, propelling Republicans to a crushing victory in the midterms that year.
Election workers Mark Bezanson, left, and Julie Olson dump ballots collected earlier in the day from drop boxes onto a table for sorting at the King County Elections office, Monday, November 5, 2018, in Renton, Washington.
Democrats are acutely aware of the risks they are facing this time around. But the share of the country that could decide control of the House of Representatives might be smaller. He has claimed that he got the support of 52 percent of women in the United States in the 2016 Presidential polls, which he won against Democrat candidate Hillary Clinton and he keeps raising the pitch on how migrants provide an unsafe environment particularly for women and for the prospects of their children.