Why was Speaker Nancy Pelosi worried about GOP investigations of Obama?

Why was Pelosi so worried back on 06/23/10 about Obama and the Democrats being investigated? What illegal actions are being hidden from the American people? For Pelosi to be so worried there has to be something illegal that she is worried about don’t you think?

Pelosi asks for donations to fend off potential GOP investigations

06/23/10 Speaker Nancy Pelosi (D-Calif.) is asking supporters for contributions to help prevent the “subpoenas and investigations” that would result from a GOP majority.

In a fundraising letter for the Democratic Congressional Campaign Committee, Pelosi says if Republicans take back the House, they’ll initiate “endless investigations against President Obama” Click to read more.