It's a crowded race to fill Hawaii's first congressional district seat.
He's trying to reach every voter in the first congressional district with a personal pitch that helped him win his city council seat on back in 2010.
Chang knocked on doors at almost every home in the fourth district, which spans Ala Moana to Hawaii Kai.
"The city council has been great training honestly because as I say, there's no such thing as a democrat pothole or a republican pothole," said Chang.
The 30 year old is a 2000 'Iolani Grad who went on to Harvard and then Harvard Law School. Chang is the son of Chinese immigrants whose struggles inform his politics.
"The number one issue for me, and it's a very personal issue to me -- in our family, social security made the difference of whether or not we could afford a hospital bed for my dad who's elderly," said Chang.
While Chang wants to protect programs for the elderly, as the youngest candidate in this race he keeps the challenges facing his peers also top of mind.
"The issues that are facing us today, jobs, education, healthcare – these are issues that disproportionally affect young people. So, I'd like to join together with fellow people of all different kinds of backgrounds. We may not agree all the time, but where we do agree, let's join together," said Chang.
Behind that serious veneer, there's a fun side to Chang; something that might surprise you.
Well I do love music and I have to say I am a sucker for K-Pop. So, I know a lot of viewers are the same way," said Chang.
Chang will debate his fellow 10 candidates who are also preparing for KITV's live debate on July 23 at 8 p.m.