In Flast, the U.S. Supreme Court held that a private citizen could challenge the constitutionality of a federal tax if the citizen established "a logical link between [their] status [as a taxpayer] and the type of legislative enactment attacked [and] .
a nexus between that status and the precise nature of the constitutional infringement alleged."
[3] Public rights may exist at common law or under statute.
For example, the right of access to information held by the government is existing at common law.
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