PORTLAND (AP) – The two leading candidates in Maine’s U.S. Senate race have raised a combined total of about $7.5 million, putting them on track to set a state record for campaign spending.

Republican Sen. Susan Collins took in $963,073 during the three months ended Dec. 31, raising her total to nearly $4.6 million. Her latest campaign finance report said her cash on hand was $3.9 million.

Collins’ Democratic challenger, Rep. Tom Allen, raised about $813,000 during the quarter to bring his total to more than $3 million. Allen’s campaign said his cash on hand was more than $2.5 million.

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