By releasing their fiercely political – and wickedly funny –  sophomore record Run The Jewels 2 at the end of 2014, MCs Killer Mike and El-P couldn’t have picked a better time to explode into the mainstream. Having kicked around just outside the rap mainstream for as well-respected solo artists during the 2000s, their 2012 joint tour lead to Run The Jewel’s self-titled debut the following year, although it’s party vibe gave little warning for it’s hard-nosed successor: El-P’s production rattled with the same intensity of The Bomb Squad, while Killer Mike spat angry truths about racism and social equality…