New Hampshire Sen. Kelly Ayotte conceded her re-election campaign against Gov. Maggie Hassan, giving Democrats their second Senate pickup of 2016.
Republicans won key Senate races as Democrats have only been able to flip two seats in Illinois and New Hampshire.
The protest vote could cost Hillary Clinton the election, NBC News reports.
The four Electoral College votes from New Hampshire are crucial for Donald Trump and could put Hillary Clinton over the top.
This year more than ever, the leading three social apps are pulling out all the stops.
Hillary Clinton shored up support in battleground states while Donald Trump crisscrossed the country, NBC News reports.
The GOP holds the majority with 54 seats, meaning that Democrats need a net gain of four seats to win control, NBC News reports.
Six states look to be election toss-ups, according to NBC: Florida, North Carolina, Ohio, New Hampshire, Arizona and Utah.
Clinton has jumped out to a nine-point lead in New Hampshire, while she’s tied with Trump in Nevada, NBC News reports.
For some locals in battleground New Hampshire, the quiet start to the Clinton-Trump debate was a surprise.
CNBC looks at jobs and wage data to gauge the impact in battleground states in this year's presidential election.
New Hampshire isn't stuck in political dysfunction, says Gov. Maggie Hassan. The state's bipartisan success story is good for business.
As a place that’s business-friendly, the Granite State is hard to beat. But the infrastructure here is crumbling.
CNBC reveals the priciest places to live in its annual Top States for Business ranking, based on the cost of housing and other essentials.
These places get high marks for their low crime rate, inclusiveness and the good health of their citizens.
America is facing an infrastructure crisis. CNBC reveals which states have the worst roads, bridges, ports, airports and rail lines.
Bernie Sanders says he will "do everything I can to make certain she will be the next president."
Rep. Bob Goodlatte, (R-Va.), discusses the decision not to charge Hillary Clinton on emails.
CNBC's Eamon Javers reports preparations are underway in Cleveland for next week's Republican National Convention as the search for vice president heats up.
Nan Hayworth, former U.S. Congresswoman (R), and Michael Feldman, Glover Park Group founder, discuss Hillary Clinton and Donald Trump's platforms and possible running mates.