From the mayor's office:
Today at 6:08am, Mayor Adrian M. Fenty and Mrs. Michelle Fenty proudly welcomed their new baby girl, Aerin Alexandra Fenty, the latest addition to the family. At 9 pounds, 1 ounce and 21 inches, she is their third child, joining 8-year-old twin sons Matthew and Andrew. Mrs. Fenty and baby Aerin are in good health and spirits.
D.C. Wire offers its congratulations and best wishes!