What's happening in Senate races?
Democrats acknowledged their path to Senate control was always slim but took solace in limiting their losses. Knocking off Donnelly in IN makes the math hard for Democrats, with competitive Senate races still too close to call in Florida and Texas.
Democratic former Vice President Joe Biden called on Americans to use their votes to reject Trump.
Democrats are expected to hold leadership elections after December 5, potentially allowing other House Democrats to whip support to challenge Pelosi.
District 4: Former Democratic school board member Susan Evans received 61.82 percent of the vote against Republican challenger Kim Coley, who had 38.47 percent.
While the economy continues to thrive, Trump has spent much of the campaign's final days railing against a caravan of Latin American immigrants seeking asylum at the United States border.
Millions of Americans voted early, by mail or at advance polls, but election-day turnout will show the late enthusiasm, if any.
Today's elections are the first opportunity for Americans to have a say about Donald Trump's presidency.
Carlos Gallinar, an El Paso resident, said he planned to vote for O'Rourke because of "the negative energy coming out of Washington and this president".
Fifty-eight of voters said the country is headed in the wrong direction, compared with 41 percent who said it is on the right track, according to a nationwide survey conducted in all 50 states for The Associated Press and Fox News. He's a military veteran who prides himself on not being a career politician.
He bet big on a xenophobic closing message, warning of an immigrant "invasion" that promised to spread violent crime and drugs across the nation. Also victorious was Virginia Democrat Tim Kaine, his party's vanquished 2016 vice presidential candidate, along with the party's incumbents in Connecticut, Delaware, Maryland and Rhode Island. Nor, with those GOP majorities, did he have a need.
Democrats were always facing an uphill battle in the Senate this year because they were defending 26 seats, while just nine Republican seats were up for grabs.
Democratic Sens. Joe Manchin in West Virginia and Tammy Baldwin in Wisconsin won re-election. In Florida, incumbent Democratic Sen. The Justice Department dropped the charges after his trial ended in an hung jury.
Democrats are most optimistic about the House, a sprawling battlefield extending from Alaska to Florida. The district was represented for decades by GOP Rep.
In the race for the Senate, Republicans picked up two seats, defeating Sen.
The president so dominates politics across the country that despite not being on any ballot he has made the election largely about him. Democratic Senator Sherrod Brown was projected to hold his seat in Ohio.
There are three key committees: the Oversight panel headed by Cummings; the Intelligence Committee led by Schiff, a southern Californian, and the Judiciary Committee to be headed by Jerrold Nadler of NY.
He and the first lady were to host an evening watch party for family and friends.
Vice President Mike Pence congratulated his brother for serving in the US Congress.
Many Democratic candidates in tight races shied away from harsh criticism of Trump, focusing instead on bread-and-butter issues like maintaining health insurance protections for people with pre-existing medical conditions and safeguarding the Social Security retirement and Medicare healthcare programs for senior citizens.
The political and practical stakes were sky-high.
Trump's Republicans now control both the House of Representatives and the Senate.
But anti-incumbent fervor helped sweep House Democrats out of power in 2010, during President Barack Obama's first term, and it threatened to hurt Republicans this year, dramatically remaking the map in key states from Pennsylvania to California.
Some Democrats have vowed to force the release of his tax returns.
"There's a great electricity in the air, like we haven't seen, in my opinion, since the '16 election". Polling suggests the Republican coalition is increasingly older, whiter, more male and less likely to have a college degree.
The demographic divides were coloring the political landscape in different ways.
In recent stops, Trump has directly targeted favourite foes House Minority Leader Nancy Pelosi and U.S. Rep. Maxine Waters and argued that Democrats would plunge the country into Venezuela-like chaos. They are also poised to make history with the number of LGBT candidates and Muslims up and down the ballot.
Meanwhile, two of the most vulnerable Senate Democrats - North Dakota's Heidi Heitkamp and Missouri's Claire McCaskill - will be nervously waiting for the results to trickle in.
Analysts expect pressure on stocks if Democrats gain control of the House of Representatives and a sharper downward reaction if they sweep the House and Senate.
Democrats boast record diversity on the ballot.
Some voting problems reported Problems with voting machines prevented Americans from casting ballots in a dozen states, U.S. rights advocates said, following complaints about registration problems, faulty equipment and intimidation received during early balloting.