History is being restored at the Richard Nixon Library, where the Watergate exhibit once told visitors nearly four decades after the scandal led to his resignation that it was really a "coup" by his rivals.

For years the library exhibit that retraces the former president's notorious saga was a target of ridicule, panned for omissions and editing that academics and critics said shaped a legacy favorable to the tainted 37th president.

On Thursday, archivists will present a revamped and expanded version of the exhibit at the library, a $500,000 makeover they say is faithful to fact, balanced and devoid of political judgment....