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8 enforcement efforts. See Wayte v. United States, 470 U. S. 598, 607–608 (1985). That is because the Executive Branch (i) invariably lacks the resources to arrest and prosecute every violator of every law and (ii) must constantly react and adjust to the ever-shifting public-safety and public-welfare needs of the American people.

This case illustrates the point. As the District Court found, the Executive Branch does not possess the resources necessary to arrest or remove all of the noncitizens covered by §1226(c) and §1231(a)(2). That reality is not an anomaly—it is a constant. For the last 27 years since §1226(c) and §1231(a)(2) were enacted in their current form, all five Presidential administrations have determined that resource constraints necessitated prioritization in making immigration arrests.

In light of inevitable resource constraints and regularly changing public-safety and public-welfare needs, the Executive Branch must balance many factors when devising arrest and prosecution policies. That complicated balancing process in turn leaves courts without meaningful standards for assessing those policies. Cf. Heckler v. Chaney, 470 U. S. 821, 830–832 (1985); Lincoln v. Vigil, 508 U. S. 182, 190–192 (1993). Therefore, in both Article III cases and Administrative Procedure Act cases, this Court has consistently recognized that federal courts are generally not the proper forum for resolving claims that the Executive Branch should make more arrests or bring more prosecutions. See Linda R. S., 410 U. S., at 619; cf. Heckler, 470 U. S., at 831 (recognizing the “general unsuitability for judicial review of agency decisions to refuse enforcement”); ICC v. Locomotive Engineers, 482 U. S. 270, 283 (1987) (“it is entirely clear that the refusal to prosecute cannot be the subject of judicial review”).