The Supreme Court is set to hear arguments tomorrow (on Thursday) that will determine the future of so-called “universal injunctions”. At issue is whether lower court judges may issue ruling that bar a law, poicy, or executive order from taking effect anywhere in the country. The argument came to the fore when, in January, President Trump signed an executive order  ending birthright citizenship. Many of President Trump’s executive actions have been blocked by such injunctions, which the administration argues are unconstitutional.