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Santorum to make candidacy official on June 6

A source close to the campaign tells First Read that former Pennsylvania Sen. Rick Santorum (R) will formally announce his presidential bid on June 6 from southwestern Pennsylvania.

Santorum has already formed his presidential exploratory committee.

Why southwestern Pennsylvania? It's where his grandfather worked in the coal mines after leaving Italy.

"This location is significant because when Se.n Santorum's grandfather left fascist Italy, he came to this country for America's freedom and the opportunity our nation afforded him," the source says.