The author is a Reuters Breakingviews columnist. The opinions expressed are his own.
Donald Trump points to a supporter as he leaves a campaign event in Rome, New York, April 12, 2016. REUTERS/Carlo Allegri
Senator Bernie Sanders. REUTERS/Scott Audette; Jeremy Corbyn. REUTERS/Stefan Wermuth
Senator Bernie Sanders at a rally at Safeco Field in Seattle, Washington, March 25, 2016. REUTERS/David Ryder
Partisanship was more the order of the day, as this picture of one of the thousands of people who attended a March 14, 2016, rally for Donald Trump near Youngstown, Ohio, shows. PHOTOGRAPH by ALAN CHIN
Republican U.S. presidential candidate Donald Trump smiles as protestors hold up a sign reading “No Place for Hate in Maine” during a campaign rally in Portland, Maine March 3, 2016. REUTERS/Joel Page
Donald Trump speaks at a campaign rally in Warren, Michigan, March 4, 2016. REUTERS/Carlos Barria
The Supreme Court building seen in Washington, May 20, 2009. REUTERS/Molly Riley
Race remains the unspoken elephant in the room amid the growing controversy over who should replace Justice Antonin Scalia on the U.S. Supreme Court.
Apple Chief Executive Officer Tim Cook speaks during an Apple event in San Francisco, California, March 9, 2015. REUTERS/Robert Galbraith
A Donald Trump supporter at a Trump campaign rally in Manchester, New Hampshire, February 8, 2016. REUTERS/Rick Wilking