well, the final week of the presidential race is overlapping with one of the biggest battles yet against isis. tonight, iraqi forces are within striking distance of mosul. they ve captured an isis-held village on the city s outskirts, opening a pathway into mosul. cnn s arwa damon has the latest. the iraqi counterforces moved and over the course of the last few days attempted to sweep from multiple directions, coming across what are now fairly common isis tactics, the suicide bombers, suicide car bombers, roads inlain with ieds. but what we also saw is something else isis has been doing fairly frequently, and that is leaving behind small groups of fighters, two, three, four people who lay in wait and then launch counterattacks at iraqi forces, more fixed positions. the fighting in the days