US Democratic Presidential candidate Hillary Clinton is back on the campaign trail, less than a week after being diagnosed with pneumonia. Clinton spoke to supporters in the state of North Carolina. It comes as new poll numbers show Donald Trump has cut into her lead, in some key battleground states. Al Jazeera's Kimberly Halkett reports from Greensboro in North Carolina. -Subscribe to our channel: http://aje.io/AJSubscribe - Follow us on Twitter: https://twitter.com/AJEnglish - Find us on Facebook: https://www.facebook.com/aljazeera - Check our website: http://www.aljazeera.com/