Mary Miller is one of 24 Democratic candidates running for Baltimore mayor. This is Ms. Miller’s first run for political office, but she is not new to government. In 2009, as the country plunged into recession, Ms. Miller was appointed by President Obama to top jobs at the Treasury Department. After holding several senior leadership positions, she left the Treasury in 2014 as the first woman to serve as the Under Secretary for Domestic Finance. Before that, she had a long career at T. Rowe Price, here in Baltimore, where she ran the bond division. For the last few years, she has been a Senior Fellow at Johns Hopkins University where she has worked with the Hopkins 21st Century Cities Initiative.