text: government homework...help!!!? what are some state and federal responsibilities.  it can be things that they have to take care of together (ex. highways) or seperatly.  i have to make an entire poster on it and i don't know what some of the responsibilities are.  help! federal government: social security, medicare, defense of country, foreign policy, trade agreements with other countries, regulate interstate commerce, highway funding.  state government: administer medicaid program, child protection, national guard, intrastate trade and business laws, highway building, repair and maintanence.