Former Sen. Rick Santorum, a conservative who rose to the No. 3 Republican leadership spot in the Senate before he lost his seat to a governor's son, has joined a prominent law firm.

Santorum will provide business and strategic counseling to clients of Eckert Seamans Cherin & Mellott LLC.

John R. McGinley Jr., chairman of the firm's executive committee, said clients will benefit from understanding Santorum's "view of where things are going."

The Pittsburgh-based law firm has no particular political affiliation, CEO Tim Ryan said Monday. Santorum will work primarily with the firm's Washington office.

Santorum also is a fellow at the Ethics and Public Policy Center, a conservative think tank, and contributes to Fox News Channel.

He was defeated for a third Senate term by Democrat Bob Casey Jr., the anti-abortion, anti-gun control son of the late popular Gov. Bob Casey Sr.