A former chief of staff to Vice President Biden filed paperwork Friday to run for lieutenant governor in Virginia, lending some political star power to a race that now has three Democrats and three Republicans vying for the office.
She owns a political consulting firm in Great Falls.
Platt joins a crowded field of candidates to replace Democratic Lt. Gov. Ralph Northam, who is running for governor in November.
Her Democratic opponents are former U.S. attorney Gene Rossi and former U.S. attorney Justin Fairfax, who also ran for state attorney general in 2013.
The Republicans are state Del. Glenn R. Davis Jr. (Virginia Beach) and state Sens. Bryce E. Reeves (Spotsylvania) and Jill Holtzman Vogel (Fauquier.)