Previously he served on the Oversight and Social Security subcommittees .
He has been chairman of the Subcommittee on Select Revenue Measures since 2008 and is a member of the Subcommittee on Trade .
Previously chairman served on the Oversight and Social Security subcommittees .
He has been chairman of the Subcommittee on Select Revenue Measures since 2008 and is a member of the Subcommittee on Trade .