NICK PATON WALSH, CNN SENIOR INTERNATIONAL CORRESPONDENT: An interesting piece of news we're just hearing. According to the AFP news agency, Turkish prime minister has said their jets took part in coalition air strikes over the city. That throws potentially a big geopolitical span into all of this, because Iraq has been very clear they want Turkey out of this. Turkey is part of anti-ISIS coalition. They may have been in the air. We can frankly not tell from here quite exactly who's been bombing who. That may well anger those pro-Iranian Shia militias who are saying they want to get involved in the Mosul fight but shouldn't be a part, according to the official plan here. So, all these geopolitical bits of fiery rhetoric swirling here. But all eyes frankly on -- as these forces move towards the city of Mosul, where there are 1.2 million people potentially caught in the crossfire inside that urban sprawl, quite what happened to them. Do they get out to the refugee camps near where I'm standing where potentially they can find shelter and some kind of safety? Or do we see a nasty and bloody end to what is the last chapter of ISIS in Iraq? Alisyn?</s>ALISYN CAMEROTA, CNN ANCHOR: Nick, thank you so much for all your reporting and all of your intense video that you're sharing with us. Thank you for being there. We'll check back with you. So, back here at home, the latest national polls show Hillary Clinton widening her lead over Donald Trump. However, in the key battleground states, the race is tightening. Our panel breaks down these differing numbers, next.
Iraqi Forces Inflict "Heavy Losses" on ISIS in Iraq