Democratic U.S. Sen. Mark Warner announced his bid for reelection on Tuesday, launching what will be a key campaign in a narrowly divided Senate.

In a campaign announcement, the Virginia senator said he was running for reelection to rein in America's economic crisis, particularly regarding the impact of artificial intelligence on job displacement.

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“We need a vision to chart a new path and effective leadership to get it done,” Warner said. “That’s why I am running for reelection to the United States Senate.”

Republicans have a 53-47 majority in the Senate. According to the Cook Political Report, Warner represents a solidly Democratic seat.

Warner, a businessman who co-founded the company that became Nextel, served as g

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