The feud between Gov. Andrew M. Cuomo and Mayor Bill de Blasio took a new turn Tuesday over the mayor's decision to join a Republican -- Cuomo's election foe in 2014 -- at a bipartisan event seeking more federal transportation funding.

While in the past he has boasted about his work with Republicans, Cuomo criticized fellow Democrat de Blasio for attending a Penn Station news conference with Westchester County Executive Rob Astorino. Cuomo cited Astorino stands such as opposing abortion rights and said he "is not a person who I would want to stand next to."

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De Blasio said "there is no litmus test" for politicians to work together when they agree. Astorino called Cuomo's attack "completely out of line."

"It seems like the governor has some insecurities, and since he's a constituent of mine, I'd be more than happy to set him up with our Department of Community Mental Health, if he actually needs a little help," Astorino said of Cuomo, who lives in Mount Kisco. The remark elicited a chuckle from de Blasio, who said afterward, "I don't agree with his last comment."