GOP Sen. Pat Toomey of Pennsylvania won a narrow victory for his second term over Democratic challenger Katie McGinty. It was a race Democrats expected to win going into the night -- and one that many Republicans felt nearly as sure they'd lose.
Toomey's victory in the most expensive political race in Senate history -- at more than $160 million -- will keep Republicans in control of the Senate.
Toomey, a former three-term congressman, was considered one of the most vulnerable Senate incumbents. A fiscal hawk, he was seeking a second term after compiling one of the most conservative voting records in Congress.
Toomey, 54, tried to distance himself from Donald Trump and leaned heavily on his willingness to buck the Republican Party, including on the hot-button issue of gun control.
He appealed to moderate Democrats and independent voters willing to split their tickets, particularly in Philadelphia's heavily populated suburbs. He also repeatedly attacked McGinty as untrustworthy and a close ally of Democratic presidential nominee Hillary Clinton.
McGinty, who has never held public office, was trying to become Pennsylvania's first female senator. The 53-year-old worked in Bill Clinton's White House and was recruited by top Washington Democrats to challenge Toomey.