That explains why he's trailing her by 13 points in the latest polls.
I guess most people still don't realize that all poles are meaningless no matter who conducts them. How can you have a meaningful poll when only 1000 or so people are polled out of many millions are polled? Most polls are phone polls and the pollster has no idea who they're talking to. When they call say they call a Registered Republican or Democrat listed phone number how do they know if they are talking to that person, it might be one of their teenage kids. The pollsters can make the poll come out any way they want to by the questions they ask, who they poll and where they poll. I partially participated in a phone survey in the last presidential race (the first and only time). I was asked a serious of valid sounding questions and my answers reflected my conservative views. When we got to the last question it was worded in a way so the only logical answer would be a direct contradiction of all my previous answers. I told them to never call me again and hung up.
I never answer polls myself, but I use them all the time to test the wind.
FiveThirtyEight keep track of hundreds of polls in their pollster ratings.
This season the polls used in the RCP average have been accurate about about 70 percent or better with a few over 90 percent in calling races.
