Republican Lindsey Graham won re-election to his US Senate seat in South Carolina on Tuesday after beating his Democratic rival Jaime Harrison, according to The Associated Press.  

The 65-year-old lawmaker secured his fourth term after garnering 55% of the votes. Harrison got 43%.

Graham is one of President Donald Trump’s closest allies in the Senate.

According to early polls, Republican Senate Majority Leader Mitch McConnell will also serve another term as Kentucky’s senator after beating his rival, former Marine fighter pilot Amy McGrath.

“I never imagined Kentuckians would make me the longest-serving senator in our state’s history or that my fellow Senate Republicans would make me the longest-serving Republican leader in US Senate history,” McConnell said, according to NBC News.

Millions of Americans headed to the polls Tuesday to elect their 46th president and congressional representatives in the House and Senate.

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