Ailsa Chang

Voters across the country cast ballots in congressional races. Republican incumbents survived strong challenges, among them Senator Pat Toomey of Pennsylvania.

Also Monday, White House spokesman Josh Earnest refused to defend or criticize FBI Director James Comey for announcing fresh scrutiny of possible Clinton emails just days before the November election.

Control of the Senate will come down to just a handful of races, and Nevada is the only seat Republicans have a real chance of flipping. Three-term Republican Sen. Joe Heck is running almost even with Democrat Catherine Cortez Masto. The race could come down to Hispanic voters, and Heck has tried to distance himself from Trump.

Michelle Obama delivered a speech on the sexual assault allegations against Donald Trump in a campaign stop for Hillary Clinton in New Hampshire.

Former Democratic Sen. Evan Bayh's double-digit lead in a Senate race has shrunk after weathering criticism for making a home in Washington, D.C., instead of Indiana during his years after the Senate.

After weeks at a standstill, Congress wrapped up all the work it was supposed to do in September in just one day, from a veto override, to reaching a deal to keep government open through December 9th.

The Senate voted Wednesday to override President Obama's veto of a bill that allows the victims of Sept. 11 to sue Saudi Arabia for any role it may have played in the terror attacks. This is the first time Congress has successfully acted to overrule the president's veto.

After weeks of negotiations, agreement over aid to Flint, Mich. will keep the government running through mid-December, narrowly avoiding a Sept. 30 deadline.

The legislation allows families of victims of the Sept. 11 attacks to sue the Saudi Arabian government. The override is the first of Obama's presidency.

Congress has one job to do this month before its October recess: make a deal to keep the government funded past Sept. 30. But that hasn't happened yet.

Congress has just one thing to do this month before its October recess: keep the federal government funded. With just one week left before the deadline, there's still no deal in sight.

First Lady Michelle Obama used her enormous popularity to campaign for Hillary Rodham Clinton yesterday, wooing millennial voters at a campus in northern Virginia.

Congress returns Tuesday after a seven week recess and will face an end of September deadline to fund the government and prevent a shutdown. Lawmakers will also have to decide how to fund efforts to combat the spread of Zika. And all of this must be done in an election year where some Congress members face tough re-election battles of their own.

It's getting awkward in New Hampshire's U.S. Senate race. To compete for independent voters, both sides are juggling uncomfortable relationships with the top of their tickets.

It's been a rough week for Donald Trump's campaign — but his opponent, Hillary Clinton has had her stumbles as well. Ailsa Chang gets a rundown from NPR's Ron Elving.

Hillary Clinton has tapped Virginia SenatorTim Kaine to be her running mate, completing the democratic presidential ticket.

Alabama Sen. Jeff Sessions backed Donald Trump early on. The two have at least one thing in common: both have been accused as being insensitive on issues of race.

Sessions was the first sitting senator to endorse Trump's candidacy. He's campaigned with Trump and serves as an important ally for the candidate that the GOP leadership still hasn't fully embraced.

House Speaker Paul Ryan says Hillary Clinton appears to have received preferential treatment in the investigation into her use of a private email server when she was secretary of state. FBI Director James Comey recommended Tuesday that no charges be brought against Clinton.

Congress is back after its July 4 break, and after a full-throated protest by Democrats over gun control. They are under pressure to provide funding to fight Zika before they leave for the summer.