The US Supreme Court will hear arguments on Tuesday that have developed into a hotly debated political debate: should the US Census Bureau have the opportunity to add a question asking every household in the United States about their citizenship?
A lower court has said this no. The Trump government wants this decision lifted.
Why is the case relevant to the parties involved and something to the story?
Why the question is added?
The Trump government has provided statistics on the place where citizens and non-citizens live, and will help them enforce voting rights, but can not use census-based information specific to individuals.
"Obtaining complete and accurate information for determining citizens' right to vote to enforce the Voting Rights Act is a legitimate government goal," Trade Minister Wilbur Ross told Congress.
"And I found that the importance of this goal outweighed the potential decrease in self-response rates that could result from people violating their legal duty to respond to the decade census. "
Is that the real reason?
The main concern of the critics is that the real reason for adding the question is driving wn official populations in areas where many non-citizens live. California is an example.
Everyone, legally or not, counts when he determines how many members of Congress are assigned to each state. Individual responses are protected by data protection laws for 72 years. These factors are not contentious when it comes to the question of citizenship.
Controversy is whether by adding the question fewer people fill out the forms or report complete data for everyone in their household.
Did not the Census Bureau always gather information about citizenship?
No, at least not by any American during the official census of the nation's population, which occurs every 1
What the Census Bureau does This is the estimate of the number of citizens and non-citizens based on ongoing surveys. These surveys replaced the long form that a small percentage of households used at the time of the census, but have not been sent since 2000.
The Citizenship Question was last published on the census form sent to every American household in 1950.
But even then, according to census historian Margo Anderson, the issue of citizenship was posed only by persons who were reported to have not been born in the United States.
"It was never asked by the entire population – never," Anderson said.
What does the census require?
Very few things are required of every household.
The theory to reduce the census form to some basic issues – and to eliminate the long forms 2010 – Increase the return rates.
The shorter and less intrusive the shape is, the more likely the answer is.
The 2010 census form asked 10 questions – age, gender, race and whether a person was Hispanic, household size and relationship between persons in a household.
What if someone does not fill out the census form?
The Census Bureau will try to count the number of people even if they do not return a census form.
This could be done by asking neighbors about the number of people living in a house or apartment. It could be done on the basis of linking other government documents to an address.
Why is it important for someone not to complete the census form?
The cheapest and most accurate way the Census Bureau can complete it The number counts when someone in each household completes the census form.
There is some concern in some quarters that using the less accurate methods leads to a sub-count. Researchers at the Census Bureau have noted that adding the question of citizenship will lead to lower response rates.
What could that mean for Ohio
A subordinate number among non-citizens could improve Ohio's chances to hold 16 congressional districts based on the new population figures after the 2020 census.  The latest estimates from the Census Bureau say Ohio has just over 250,000 non-citizens – legal or not. That's just two percent of Ohio's population.
For comparison, Florida has 2 million (12 percent), Texas 3 million (13 percent) and California 5.2 million (18 percent).
It seems that Ohio seems to be falling 15. However, if fewer people are counted in countries where there are many non-citizens, Ohio could claim 16 seats.
When will a decision be made?
The Supreme Court will decide by Midsummer.
The census forms must be ready for the beginning of the census in the remotest areas of Alaska in January and for the rest of the country before the day of the 2020 Census on April 1st.
Rich Exner Data Analysis Editor for cleveland.com  writes about numbers on various topics. Follow on Twitter @RichExner . For data-related stories, see cleveland.com/datacentral .