WASHINGTON (AP) -- The man who led the Internal Revenue Service when it was giving extra scrutiny to tea party and other conservative groups seeking tax-exempt status told Congress on Tuesday that he knew little about what was happening while he was still commissioner. Douglas Shulman, who vacated his position last November when his five-year term expired, told the Senate Finance Committee he didn't learn all the facts until he read last week's report by a Treasury inspector general confirming the targeting strategy. In his first public remarks since the story broke, Shulman said: "I agree this is an issue...