The announcement came via a letter from POTUS to an 8-year-old Flint girl named Mari Copeny.
Her letter and Obama's response are below.
Hello my name is Mari Copeny and I’m 8 years old, I live in Flint, Michigan and I’m more commonly known around town as “Little Miss Flint”. I am one of the children that is effected by this water, and I’ve been doing my best to march in protest and to speak out for all the kids that live here in Flint. This Thursday I will be riding a bus to Washington, D.C. to watch the congressional hearings of our Governor Rick Snyder. I know this is probably an odd request but I would love for a chance to meet you or your wife. My mom said chances are you will be too busy with more important things, but there is a lot of people coming on these buses and even just a meeting from you or your wife would really lift people’s spirits. Thank you for all that do for our country. I look forward to being able to come to Washington and to be able to see Gov. Snyder in person and to be able to be in the city where you live.