Always take general election polling six months out with a grain of salt, but the Donald has a lot of ground to recover:
"A Fox News poll released Wednesday showed Clinton with an 11-point lead over Trump in a hypothetical matchup, while aCBS/New York Times poll published earlier this week found Clinton with a 10-point lead over Trump. A Bloomberg poll on Wednesday put the gap even wider, with Clinton leading Trump by 18 points."
http://www.businessinsider.com/polls-hillary-clinton-donald-trump-kasich-cruz-2016-3
"A Fox News poll released Wednesday showed Clinton with an 11-point lead over Trump in a hypothetical matchup, while aCBS/New York Times poll published earlier this week found Clinton with a 10-point lead over Trump. A Bloomberg poll on Wednesday put the gap even wider, with Clinton leading Trump by 18 points."
http://www.businessinsider.com/polls-hillary-clinton-donald-trump-kasich-cruz-2016-3