But, instead, Obama, by his own admission, offers the excuse that he has been too busy running for president to do anything substantive, such as direct his staff to organize a single hearing. "Well, first of all," Obama was forced to confess in the Democratic debate in Ohio on February 26, "I became chairman of this committee at the beginning of this campaign, at the beginning of 2007. So it is true that we haven't had oversight hearings on Afghanistan." To date, his subcommittee has held no policy hearings at all -- none. At the same time that Obama claimed he was too busy campaigning to do anything substantive, racking up one of the worst attendance records in the Senate, Senator Clinton chaired extensive hearings of the Subcommittee on Superfund and Environmental Health and attended many others as a member of the Armed Service Committee.