"Frankly, that group is holding us up, " said Westchester Assemblywoman Amy Paulin, the primary sponsor of the alimony law.

WSJ: New York Divorce Law's Alimony Aftermath

Mars also extended its deal last month as primary sponsor of the No. 18 car driven by Kyle Busch for Joe Gibbs Racing.

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Domino's Pizza, a primary sponsor of Michael Waltrip Racing, and Eastman Kodak, a sponsor of Penske Racing, threw in the towel after last season.

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