Problem
Look at the ANA site on healthcare policy. Then you can use their ideas and speak to one area where nurses can affect and change healthcare policy for the better. You are welcome to choose another healthcare policy for nursing that is not mentioned on the site as well as long as it is relevant to nursing.
Explain the problem in the "who, what, when, where, and why" platform to the best of your abilities. Try to choose an area that affects your current scope of practice, or where you want to be one day.