(CNN) – After facing a crowded field of Senate hopefuls in Virginia, GOP candidate George Allen won the commonwealth's primary Tuesday, CNN projects.
Allen's victory marked a final hurdle in his bid to run against Democrat Tim Kaine in one of the nation's most closely-watched Senate races.
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“Today, thousands of Virginians sent a message to President Obama, Tim Kaine and their allies in Washington that they have had enough of the failed policies coming out of Washington," Allen said in a statement Tuesday night.
Voters chose between Allen, state lawmaker Bob Marshall, tea party activist Jamie Radtke, and minister E.W. Jackson. Marshall represented the most serious competitor against Allen, though he still trailed far behind Allen in recent polls heading up to the primary.
While Allen shored up the Republican nomination this week, his three opponents nevertheless left their mark on the primary race by forcing the candidate to run further to the right in his campaign.
Allen previously held the Senate seat before losing re-election in 2006 to Democratic Sen. Jim Webb, who's now retiring after one term.
Meanwhile, Kaine, also a former governor and the former Democratic National Committee chairman, ran unopposed on the Democratic side.
"I want to congratulate George Allen for his victory in tonight's primary," Kaine said in a statement Tuesday night. "As we move into the general election phase of this campaign, Virginians are faced with a stark choice between two very different visions for our country's future."
In this year's first quarter, the Democrat reported having more money in the bank than his Republican opponent - $4.4 million to Allen's $2.7 million.
Along with a Senate race featuring two former governors, Virginia will be a political hotbed this fall in the presidential election as both President Barack Obama and Republican Mitt Romney vie for the crucial swing state.