Within the executive branch itself, the president has broad powers to manage national affairs and the priorities of the government. The president can issue rules, regulations, and instructions called executive orders, which have the binding force of law upon federal agencies but do not require approval of the United States Congress. Executive orders are subject to judicial review and interpretation.

Based on this passage, what can the president do without congress approval? Let's think fast. Stream of consciousness:
The relevant information to answer the above question is: The president can issue rules, regulations, and instructions called executive orders, which have the binding force of law upon federal agencies but do not require approval of the United States Congress. So the final answer is issue rules , regulations , and instructions called executive orders.