The United States Olympic Committee and Boston 2024 have “jointly ended” Boston’s bid for the 2024 Olympics.

Mayor Marty Walsh, who has been a staunch supporter of Boston’s bid to host the 2024 Olympics, said Monday that he would not sign a contract with the U.S. Olympic Committee that commits the city to covering any budget overruns.

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Welcome to Monday’s Morning Mashup. For the latest news, start at our WEEI.com home page or click here for the top stories from our news wire.

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