How can the president enforce a law passed by congress?

The president can enforce a law passed by Congress through the executive branch, which includes various federal agencies responsible for implementing and regulating the law. The president may issue executive orders or directives to guide these agencies in their enforcement actions. Additionally, the president can propose budgets and allocate resources to ensure effective enforcement, as well as appoint key officials to lead the relevant agencies. Ultimately, the president's role is to ensure compliance with Federal Laws and uphold the rule of law.