As it pushes to implement a plan to end birthright citizenship, the Trump administration is counting on an argument about out-of-control federal judges to prove irresistible to some Supreme Court conservatives.

The U.S. Supreme Court declined on Friday to halt a Financial Industry Regulatory Authority proceeding to expel one of its members, broker-dealer Alpine Securities, in a case challenging the constitutionality of the Wall Street's self-regulator's enforcement power.