Abortion is a political liability for Republicans. GOP hopeful John Deaton says he'd break with the party over it.

As the calendar flipped to October, polling in Arizona’s U.S. Senate race continued to show Democrat Ruben Gallego leading ...

View Senate early voting results by state map, see the battleground states, and key races to watch from NBC News.

The gun group's political arm is pumping a seven-figure ad-buy into the toss-up Ohio Senate race to boost Republican nominee ...

As the election cycle enters an urgent, final five weeks, both Democrats and Republicans are engaging in questionable tactics ...

A burst of $8 million in new super PAC ad spending is lighting up America's quietest toss-up Senate race, Axios has ...

If Ruben Gallego is going to give Democrats their fourth straight U.S. Senate victory in Arizona, he’s probably going to need ...

Jon Tester, the most endangered Senate Democrat, has sought to hit his Republican opponent, Tim Sheehy, as an extremist on ...

Millions of dollars are flooding into the Lone Star State as Ted Cruz and Colin Allred are in a tight race for a U.S. Senate ...

A seemingly non-competitive Senate race in deeply Republican Nebraska is no longer a safe bet for two-term incumbent Sen. Deb ...

Republican Senate candidate Bernie Moreno is receiving significantly more outside PAC support than Democratic Senator Sherrod ...

With a little over a month to go until the election, Maryland voters could well decide the power balance between Democrats ...