I thought this was a good article and worth reading.  Evidently polling has become a media event in itself:

OVER the past few weeks, cable news networks and other media sites have trumpeted wild fluctuations and surprising results in polling on the presumed general-election matchup between Donald J. Trump and Hillary Clinton.

The Reuters/Ipsos tracking poll showed a roller-coaster ride: It went from a 13-point Clinton lead on May 4 to a tie just five days later. Six days after that, on May 15, Mrs. Clinton had a six-point edge. But an NBC/Survey Monkey poll showed a bare three-point margin for Mrs. Clinton nationally over Mr. Trump.

At the same time, Quinnipiac polls focused on key battleground swing states showed success for Mr. Trump: up by one point in Ohio, and down by only one point in Pennsylvania and Florida — shocking results in states that were expected to be much more favorable to Mrs. Clinton, and particularly striking when other surveys showed the red state of Georgia, which should be a Trump stronghold, a tossup.In this highly charged election, it’s no surprise that the news media see every poll like an addict sees a new fix. That is especially true of polls that show large and unexpected changes. Those polls get intense coverage and analysis, adding to their presumed validity.

The problem is that the polls that make the news are also the ones most likely to be wrong. And to folks like us, who know the polling game and can sort out real trends from normal perturbations, too many of this year’s polls, and their coverage, have been cringeworthy.

http://www.nytimes.com/2016/05/20/opinion/stop-the-polling-insanity.html?_r=0
 

Last edited by Just Fred (5/20/2016 7:27 am)