he finally professor joshua gil ter, the executive director of the institution of advocacy and protection of georgetown law where he's also a visiting professor of law. >> joshua led a team offering a letter to secretary wilbur ross highlighting constitutional and statutory issues of the administration failure. joshua serves as senior director at the national security at council staff. joshua also serves to justice steven brian and was editor and chief. thank you very much for participating on the panel today. welcome to georgetown. >> why don't we do ahead and get started with director john h. thompson. >> thank you, john. so, i would like to do three things, talk about why the census is so important. talk a little bit about what's different of the 2020 census as opposed to prooeevious census a laying the ground work and my fellow panelists are covering much more details. why is the census important and we heard that it is the bases of reapportion the congress and that's a constitutional mandate. the data from the census are used to support fair redistricting and every state uses those d