Hansi Lo Wang

Sen. Cory Booker is proposing a preemptive strike against using a citizenship question on the 2020 census in a way that he says could give Republicans a political advantage.

Updated at 5:42 p.m. ET

An official says the Justice Department has been instructed to keep looking for a way to ask 2020 census responders whether they are citizens of the United States.

The Supreme Court has left in place a lower court's order to block the question for now.

After the Supreme Court declined to allow the question, tweets by President Trump had sowed confusion about whether he planned to continue the legal fight.

Updated at 3:56 p.m. ET

The Trump administration appears to have missed its own deadline Monday to start the printing of paper forms and other mailings that will play a key role in next year's constitutionally mandated head count of every person living in the U.S.

Hours after the Supreme Court ruled to keep a citizenship question off 2020 census forms for now, President Trump threatened to delay next year's national head count.

Asked by a reporter for how long he would delay the census until a citizenship question is allowed, Trump did not give an answer.

Updated at 7:54 p.m. ET

President Trump says he is looking into delaying the 2020 census, hours after the Supreme Court decided to keep a question about citizenship off the form to be used for the head count.

Trump tweeted that he has asked lawyers whether they can "delay the Census, no matter how long, until the United States Supreme Court is given additional information from which it can make a final and decisive decision on this very critical matter."

Updated at 7:51 p.m. ET

A new order by a federal judge in Maryland sets up a potential new block against the Trump administration's plans to add a citizenship question to forms for the upcoming 2020 census.

The latest development in the legal battle over the hotly contested question could complicate the Census Bureau's plans to finalize census questionnaires and start printing paper forms for the national head count by July 1.

Updated at 1:10 p.m. ET

A high-ranking Census Bureau official privately discussed the citizenship question issue with GOP redistricting strategist Thomas Hofeller in 2015, according to emails cited in a new court filing in the legal battle over the potential census question.

The Trump administration left behind a long paper trail as it pushed to get a citizenship question on the 2020 census.

The courts have yet to issue their final word on whether the Trump administration can add a citizenship question to the 2020 census.

But starting Thursday, the Census Bureau is asking about a quarter-million households in the U.S. to fill out questionnaires that include the question, "Is this person a citizen of the United States?"

The forms are part of a last-minute, nine-week experiment the federal government is using to gauge how the public could react next year to census forms with the potential census question.

Updated June 8 at 9:15 a.m. ET

More than a year before the Trump administration formally asked the Census Bureau to add a citizenship question to the 2020 census, Kris Kobach discussed including the question with officials during President Trump's 2016 election campaign.

Challenges threatening the upcoming 2020 census could put more than 4 million people at risk of being undercounted in next year's national head count, according to new projections by the Urban Institute.

Updated at 10:53 p.m. ET

A major Republican redistricting strategist played a role in the Trump administration's push to get a citizenship question on forms for the 2020 census.

The history of the U.S. census asking about people's citizenship status is complicated.

Many of the stops and starts have been unearthed as part of the legal battle over the decision by Commerce Secretary Wilbur Ross, who oversees the Census Bureau, to add a citizenship question to the 2020 census.

Updated May 20 at 10:38 a.m. ET

Some critics of the citizenship question the Trump administration wants to add to the 2020 census are coming from a group that tends to stay away from politically heated issues — business leaders.

Some communities still recovering from recent natural disasters will receive special visits by 2020 census workers next year to make sure all residents are counted.

Updated April 25 at 5:28 p.m. ET

The justices of the U.S. Supreme Court appear split along ideological lines on whether a citizenship question can be included on forms for the upcoming 2020 census.

Based on their questions during Tuesday's oral arguments at the high court, the justices appear ready to vote 5-4 to allow the Trump administration to add the hotly contested questions to forms for next year's national head count.

Updated April 8 at 6:35 p.m. ET

The Trump administration's plans to add a hotly contested citizenship question to the 2020 census have suffered another major blow in the courts.

The question asks, "Is this person a citizen of the United States?"

A third federal judge has found the decision to include it on forms for the national head count to be unlawful.

Steven Dillingham, the new director of the U.S. Census Bureau, is refusing to step into the controversy surrounding a potential question for the upcoming national head count.

The hotly contested question asks, "Is this person a citizen of the United States?"

Speakers of Arabic — one of the fastest-growing languages in the U.S. — will have one fewer barrier to participating in the upcoming 2020 census.

For the first time, the federal government is planning to officially collect census responses in Arabic along with six other new language options for the head count, including French, Haitian Creole, Japanese, Polish, Portuguese and Tagalog.

Updated 7:53 p.m. ET

A second federal judge has issued a court order to block the Trump administration's plans to include a citizenship question on the 2020 census.

U.S. District Judge Richard Seeborg of California found that the administration's decision to add the question violated administrative law.

New security measures at the Department of Defense that limit the release of military records about U.S. troops deployed abroad could put the accuracy of the 2020 census "at risk," according to a newly released internal Census Bureau document.

Updated at 5:50 p.m. ET

The Supreme Court has agreed to decide whether the Trump administration can add a citizenship question to the 2020 census. The decision grants the administration's request for an immediate review of a lower court's ruling that stopped plans for the question. A hearing is expected to be held in April.

The Trump administration is planning to ask the Supreme Court to review a lower court's ruling that blocks the addition of a citizenship question to the 2020 census, according to a Justice Department filing released Tuesday.