Joseph Lieberman, a former senator and onetime candidate for vice president, is going back to private practice.

Law firm Kasowitz Benson Torres & Friedman announced yesterday that Lieberman has joined the firm a senior counsel. He will be advising clients on independent and internal investigations, as well as public policy and regulatory matters.

Lieberman left his post as a Connecticut senator in January after serving four terms.

“I am very happy to be joining Kasowitz Benson Torres & Friedman LLP and excited to return to my roots as a lawyer and counselor with the opportunity to use the independent investigative skills I learned as Attorney General and during many Senate investigations,” Lieberman said in a statement

The firm’s founding partner, Marc Kasowitz, said he’s thrilled to have Lieberman join his firm.

“This is a great day for the firm and for our clients, as there are few individuals whose integrity, character and judgment match that of Senator Lieberman,” he added. “His incredible breadth of knowledge and experience will be a powerful resource.” 

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