Immigration
Chevron deference to AG decision that grandfathering statute implicitly bars relief to later substituted applicants.
https://d3bsvxk93brmko.cloudfront.net/datastore/opinions/2016/02/02/13-70414.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.