Look into the District of Columbia Home Rule Act
en.wikipedia.org
>Under the District of Columbia Home Rule Act, whenever the President of the United States determines that special conditions of an emergency nature exist which require the use of the Metropolitan Police force for Federal purposes, he may direct the Mayor to provide him, and the Mayor shall provide, such services of the Metropolitan Police force for up to 48 hours. During longer periods of time, the President must provide to Congress in writing his reasons for continuing control of the MPD. This control can be extended at any time beyond 30 days if either the emergency continues or if Congress passes a law ordering it.
beta.code.dccouncil.us
ggwash.org
>Before the Home Rule Act, Congress made all of DC’s laws, and the executive branch ultimately reported to the President of the United States, as if DC were another agency of the federal government (basically, it was). But in 1973, Congress set up our current system of an elected mayor and council. Only they balked at giving DC full autonomy.
Despite the new law, Obama could have claimed an "emergency" and taken control of the DC Police department. Note how that requires the cooperation of the mayor, who openly endorsed Obama in the past:
washingtoncitypaper.com
Now note how Joe Capone was in this very video and we have records of him attending a sports game in the mayor's box as well as his trip to the WH.