BU Law emerita professor Tamar Frankel explains the law of preemption as it pertains to broker-dealers and their investor clients. She predicts, among other things, that either the clients will demand that broker-dealers adhere to a fiduciary duty, or else that states will impose that duty on them.

UF Levin College of Law professor Neil H. Buchanan continues his series of columns attempting to find optimism in what he describes as “post-constitutional life in America.” In this installment, Buchanan notes that President Trump’s reactions to COVID-19 are a reason for optimism because they reflect a fear that a pandemic (and market responses to a pandemic) could threaten his hold on the White House.

Illinois Law dean and professor Vikram David Amar comments on a recent decision by the U.S. Court of Appeals for the Second Circuit regarding so-called “sanctuary” jurisdictions. Amar argues that while the Second Circuit may have arrived at the correct conclusion of law, it also misunderstood the Supreme Court’s decision in NFIB v. Sebelius, in which the Court struck down the “Medicare expansion” provision of the Affordable Care Act as unconstitutionally coercive. Amar points out that in Sebelius, the Court found the fact that the Medicare expansion provision of the ACA vitiated the terms of a preexisting deal was sufficient to hold that provision coercive.

Rodger Citron, Associate Dean for Research & Scholarship and Professor of Law at Touro Law, comments on a case in which the U.S. Supreme Court will hear argument this week that presents the question whether an independent agency with a single director who can be removed only “for cause” violates the separation of powers principle enshrined in the Constitution. Citron notes that the decision to hear the case is unusual in that there is no conflict among the federal appeals courts, but he points out that that the government’s support of the cert. petition and then-Judge Brett Kavanaugh’s dissent on the issue when it came before the D.C. Circuit likely helped the present case come before the Court.

Cornell law professor Michael C. Dorf comments on last week’s decision by the U.S. Court of Appeals for the D.C. Circuit holding that federal courts could not enforce a congressional subpoena to former White House Counsel Don McGahn because federal courts cannot adjudicate interbranch disputes. Dorf describes some of the major flaws in the court’s reasoning and explains why the ruling is a clear victory for Donald Trump and a loss for the constitutional system.