[1] He has been awarded the Pulitzer Prize three times, for investigative reporting in 1996 with the staff of the Orange County Register, in 2006 for his work on the Jack Abramoff lobbying scandal while working for The Washington Post, and in 2023 with the staff of the Wall Street Journal for its capital assets series.
[6] Grimaldi's work has focused on accountability stories about Congress, politicians, presidential campaigns, D.C. public schools, the Washington Redskins, the Smithsonian Institution, the National Zoo, and many other areas.
[1] His work with the staff of The Washington Post on "The Hidden Life of Guns" series, won him the Freedom of Information medal.
[7] Grimaldi began his career in journalism after graduation; his first job was writing about the police and the border patrol for the San Diego Tribune, in 1984.
[1][6] In 2024, Grimaldi left The Wall Street Journal to become executive editor of the National Catholic Reporter.