WASHINGTON - President Donald Trump’s call for a new census excluding undocumented immigrants has sparked confusion over timing and legality. Experts say the proposal faces insurmountable obstacles.

The quality of any sample survey is dependent upon the quality, completeness, and appropriateness of the underlying frame from which the sample is drawn. Over its entire existence, the fundamental ...

Finding 3.1: The lack of agreement until 1999 on the basic census design among the Census Bureau, the administration, and Congress hampered planning for the 2000 census, increased the costs of the ...