The House Energy and Commerce Subcommittee on Oversight and Investigations voted (14-9) November 3 to subpoena the White House for internal documents on the Solyndra loan guarantee. Committee Republicans moved forward with the vote even after the Obama administration delivered an additional 15,000 pages of documents to the committee the previous evening in an attempt to compromise. Prior to the subpoena, the Department of Energy had provided the committee with more than 80,000 pages of documents, participated in a full committee hearing, scheduled a hearing with Energy Secretary Steven Chu, and made numerous department officials available for briefings with committee staff beginning in March. The House Oversight and Government Reform Committee is also conducting an investigation into the loan guarantees, and Committee Chairman Darrell Issa (R-CA) sent a letter November 2 to Energy Secretary Chu saying that the investigation may require the use of compulsory processes. Secretary Chu defended the loan guarantee program at a Washington Post conference November 3, saying that the program could be improved to make it more flexible in the future; he also suggested the deployment of a clean energy bank that would not require taxpayer funding once it begins generating revenue from successful startups.