"The report itself stopped short of resolving questions about higher White House involvement in the matter, because of what it said were the refusal to cooperate of a number of key players, among them Karl Rove, Senator Pete Domenici and Harriet Miers and because the White House refused to hand over its documents related to the firings.On July 21, 2010, Dannehy concluded that "there was insufficient evidence to establish that persons knowingly made material false statements to [the Office of Inspector General] or Congress or corruptly endeavored to obstruct justice" and that no criminal charges would be filed against Sampson or Gonzales.