Following the Blackwater Baghdad shootings, Henry Waxman's House Oversight Committee subpoenaed its chief executive officer Erik Prince to testify.

[15] That speculation ended after former Associate Director of the Federal Bureau of Investigation Mark Felt announced in May 2005 that he was Deep Throat, as later confirmed by Woodward, Bernstein and Executive Editor Ben Bradlee in a statement released through The Washington Post.

Fielding served on the Tribunal on the U.S.-UK Air Treaty Dispute (1989–1994), George H. W. Bush's Commission on Federal Ethics Law Reform (1989), and Secretary of Transportation Rodney E. Slater's Task Force on Aviation Disasters (1997–1998).

[16] Fielding returned to government on January 8, 2007 by President George W. Bush to replace outgoing White House Counsel Harriet Miers.

When the New York Daily News reported that Toussie had made large contributions to the Republican Party, the White House revoked the pardon the next day.

[20] Fielding has published legal articles on the topics of presidential counsel and Russia and Ukraine matters in his role at Morgan, Lewis & Bockius LLP.