Kennedy heir Jack Schlossberg was a constant man about town as he tried to drum up votes and rake in donations at the height of his New York congressional campaign. But just months on from his humiliating defeat, the 33-year-old political nepo baby mysteriously vanished altogether, with his tight-knit family apparently whisking him away to prevent a potential spiral, sources told the Daily Mail. President John F Kennedy's only grandson appears to have ditched his usual routine and has be MIA from his Chelsea apartment building of late, according to the sources. 'People haven't seen him,' one source inside the building said. 'At one point, food was being delivered and sat outside overnight. That was when people really started wondering where Jack had gone.' Schlossberg, who failed spectacularly in his bid to get elected to Congress this past June despite being part of one of America's most powerful political families, took the bruising loss much harder than anyone expected, sources said...