Supreme courts

Mitch Hungerpiller of Birmingham, Ala., who invented a computerized system to automate the processing of returned mail, visits the Supreme Court in Washington, on Feb. 14, 2019, where his decade-long fight with the post office over patent infringement will be heard. (AP Photo/J. Scott Applewhite)

A huge Spanish flag hangs from a building under construction in downtown Madrid, Spain, Friday, Feb. 15, 2019. The prime minister of Spain has called early general elections for late April, the third such ballot in less than four years in an increasingly fragmented partisan landscape and with Catalonia's independence push dominating the political debate. (AP Photo/Andrea Comas)

President Donald Trump gestures to the audience as he heads to the Oval Office after speaking during an event in the Rose Garden at the White House in Washington, Friday, Feb. 15, 2019, to declare a national emergency in order to build a wall along the southern border. (AP Photo/Susan Walsh)

President Donald Trump gestures to the audience as he heads to the Oval Office after speaking during an event in the Rose Garden at the White House in Washington, Friday, Feb. 15, 2019, to declare a national emergency in order to build a wall along the southern border. (AP Photo/Susan Walsh)

FILE - In this May 4, 2018, file photo, California Attorney General Xavier Becerra, at podium, announces at a news conference in Los Angeles that the city and county of Los Angeles, as well as four other cities have joined a lawsuit the state previously filed challenging the Trump administration's plan to ask people if they are U.S. citizens during the 2020 census. A U.S. judge in San Francisco will hear closing arguments Friday, Feb. 15, 2019, in a trial over the Trump administration's decision to add a citizenship question to the 2020 U.S. Census for the first time in 70 years. (AP Photo/Damian Dovarganes, File)

FILe - In this Jan. 30, 2018 file photo Supreme Court Justice Ruth Bader Ginsburg waves in acknowledgement of the applause she receives as she arrives for a "fireside chat" in the Bruce M. Selya Appellate Courtroom at the Roger William University Law School in Bristol, R.I. The Supreme Court says Justice Ruth Bader Ginsburg has returned to the building for the first time since lung cancer surgery in late December. (AP Photo/Stephan Savoia)

Catalan regional Vice-President, Oriol Junqueras, center, next to Catalan former Cabinet member Raul Romeva, left, during the trial at the Spanish Supreme Court in Madrid, Tuesday, Feb. 12, 2019. Spain is bracing for the nation's most sensitive trial in four decades of democracy this week, with a dozen Catalan separatists facing charges including rebellion over a failed secession bid in 2017. (J.J. Guillen/Pool via AP)

Judges enter as the delegations of Iran, front row left, and the U.S., front row rear right, stand up, at the International Court of Justice, or World Court, in The Hague, Netherlands, Wednesday, Feb. 13, 2019. The court is scheduled to deliver its judgement on U.S. objections about the court's jurisdiction in the case. (AP Photo/Peter Dejong). (AP Photo/Peter Dejong)