Congressman Jared Polis . ( D ) Colorado : District 02 . Congressman Jason Chaffetz . ( R ) Utah : District 03 .
Two freshman representatives document their experience for CNN . The House Oversight Committee is investigating the IRS targeting of conservative groups applying for tax-exempt status and whether there was political bias in how it singled out certain groups. Rep. Jason Chaffetz is a Republican representing Utah 's Third district .