Allies of President Trump are behind the federal lawsuits challenging various aspects of the once-a-decade count by the U.S.

President Trump said Thursday that he is ordering his administration to begin work on a new census that excludes undocumented immigrants from the national tally of people living in the United States. ...

The U.S. Census Bureau will have new categories for race and ethnicity for the first time in 27 years, directly affecting people who identify as Hispanic, Latino, Middle Eastern and North African.

In a recent development, President Donald Trump has proposed a new census excluding undocumented residents, a move that could have far-reaching implications beyond political representation. The census ...