Lennon v. United States, 387 F. Supp. 561 (S.D.N.Y. 1975)
https://law.justia.com/cases/federal/district-courts/FSupp/387/561/1672537/
If I read this correctly, the cause of action (the 'second' one) wherein Lennon was denied discretionary relief of deportation was that his requests were automatically denied repeatedly without being prejudged, in other words, officials and the judges' routine denials based on their own understanding and conscience alone were not enough to deny relief or appellate rights, despite Lennon's admitted UK conviction. He was supposed to have the right to at least argue the conviction's circumstances were extraordinary and upon appeal were likely to be reversed (the detective who charged Lennon with possession later admitted in court to planting illegal drug related evidence in cases related to high profile individuals in England; Lennon plead guilty as a health precaution to Yoko's pregnancy. She had a history of miscarriages. Afterward, they left for the US).
In other words, deporting someone based on wishes of high level government officials, or immigration judges for the hell of it is in conflict with an individual's rights (and for those conservative idiots who want to assert that the constitution only applies to US citizens, it is the law of the land, not just the law of US citizens).