What Gore did to him was criminal, its been alleged for years (and to this day), that Gore essentially cheated in New Hampshire to beat Bradley, basically killing Bradley campaign at that point.
There debates were also vicious, as Gore basically called Bradley a racist and implied that Bradley was responsible for racial profiling in New Jersey (the most common phrase uttered by Bradley during said debate was "Thats not true Al"). Bradley also announced his run before Gore did (not that it mattered, everyone knew Gore was running).
yitbos