It is pretty unfair of me to rate this, but it is part of the collection. I never picked the other two issues in this storyline. Reading the bookend issues hasn't changed my opinion that was yet another mediocre crossover.
Senator Robert Kelly is running for President on a platform to deal with the mutant threat, and the Brotherhood of Evil Mutants plan to assassinate him before he can get into office. The X-Men realize how real the threat is to Senator Kelly and secretly plant Cable into the campaign as a bodyguard. The X-Men's investigation into Mystique's plan, however, reveals a much more sinister plot to unleash a mutation of the Legacy Virus on the human race.
The elements of past stories are all blatantly visible. An anti-mutant presidential nominee being secretly protected by the X-Men in order to (unsuccessfully) prevent an assassination. Mystique and the Brotherhood of Evil Mutants attempting to murder Senator Robert Kelly. The Legacy Virus used as a weapon.
Unoriginal, uninspiring, and unexpected from the great Chris Claremont.
[4-Stars] Uncanny X-Men (1963) #388
[Missing] Cable (1st series) #87
[Missing] Bishop: The Last X-Man #16
[5-Stars] X-Men (1991) #108

