In a word, no. There are examples of complaints against individual police departments investigated by the USDOJ that lead to an MOA, Memorandum Of Agreement. One example I can cite is from the Prince George's County Police Department in Prince George's County, Maryland. In the MOA, they agreed to use dashboard cameras, and body camera technology wasn't as evolved in 2004 as it is today. The DOJ might well insist upon wearable cameras today for such complaints.
No, local police are under state/local control and the president runs the federal executive branch. The president isn't even really a policy maker- that role falls to Congress. But even congress can't dictate a camera program because their control doesn't extend to local police. This exact issue was litigated in the early 90s in Printz v U.S. (1997) when congress passed a law commanding local police to carry out a federal policy relating to gun control.