ATR will be hosting a debate for the candidates at the National Press Club in Washington D.C. and in the run-up they have a web form for you to submit questions to the candidates.
That site is HERE.
Basically, all you need to to is register with your email and zip code, confirm your email and then you can submit your question. You can also read other questions that have been submitted and vote them up or down, which will help ATR pick which ones to ask. The most popular question now, submitted by Charlie Smith, is:
While many people in the party have spoken about the importance of young voters, few have offered concrete plans on how to work from within the RNC to attract young voters back to our party. What, specifically, would you do to make the Republican Party an attractive option for voters 18-29 years old? Please include any ideas you have for specific programs, policy initiatives, or organizational restructurings you would commit to as RNC Chairman.Do you have a better question?