WASHINGTON - US President Donald Trump on Monday said the nation's 2020 census would be 'meaningless' without the inclusion of a controversial citizenship question, wading into the legal fray over the nationwide count. Trump, in a tweet, criticized Democrats over issues surrounding 'the all important Citizenship Question' and said the census would be a waste of government funding if the question was dropped. The Trump administration's decision to add a citizenship question to the 2020 survey is before the US Supreme Court.