Senior White House officials, including chief political strategist Karl Rove and former presidential counsel Harriet Miers, may be subpoenaed by Senate Judiciary Committee Chair Patrick Leahy if they do not agree to testify in the probe into the firings of the U.S. attorneys. On Sunday, Democratic Senator Dianne Feinstein of California revealed that Gonzales’ former chief of staff, D. Kyle Sampson, described fired U.S. Attorney Carol Lam as a “real problem” one day after Lam announced plans to execute search warrants on Kyle Dustin “Dusty” Foggo, the third-ranking CIA official at the time.