Clinton leads Trump by just 1 point, 43 to 42 percent.
A schedule to the upcoming debates in marquee races.
The long-time senator's race against Rep. Ann Kirkpatrick could be his closest.
The former Joe Heck aide said Catherine Cortez Masto was pandering to Hispanics.
A Quinnipiac University poll found Senate incumbents ahead in three states.
Devin Henry 09/23/16 12:18 PM EDT
A green group has endorsed five Democrats in key Senate races around the country.
The Senate Leadership Fund is launching an attack ad against Jason Kander.
Recent polls show Patrick Murphy losing to Marco Rubio among Hispanics.
The ad uses an old clip of Toomey calling for an elimination of the corporate tax.
Democrat Deborah Ross leads GOP Sen. Richard Burr by 4 points in North Carolina.