High school students in Washington's 1st Congressional District! Sign up for the 2018 Congressional App Challenge - Appathon! You'll participate in a two-day hack to build an awesome software app for your choice of mobile, tablet, or computer. The winning app from each congressional district will be displayed in the US Capitol Building and on House.gov. Winners are also invited to the #HouseofCode Reception in Washington D.C. and each winner will receive $250 in Amazon Web Services credits!