What the chart shows is that Hillary Clinton’s Presidential appeal to the electorate that will matter on Election Day in November 2016 has been plunging ever since around January of 2013 — or more than two years ago. She was vastly more attractive to the American electorate as a prospective President two years ago than she is today.

Here are the latest ten of those polls:

http://elections.huffingtonpost.com/pollster/hillary-clinton-favorable-rating

Those net to 37% unfavorable and 16% favorable, over the ten polls, or a per-poll average of 2.1% higher unfavorable ratings than favorable ratings per poll for the most recent ten polls; and this is covering all ten polls that were taken during the month-long period starting from March 21 and extending through April 21. 

So: Hillary Clinton, fairly consistently during the latest available month, is viewed significantly more unfavorably than she is viewed favorably. These polls reflect voter-sentiment among the entire American electorate instead of only within the Democratic Party; and, so, they have no bearing on whether Ms. Clinton will win the Democratic primaries, which are elections in which almost all of the voters will be Democrats.

And, finally, on Thursday, 30 April 2015, she will start to have a competitor in the Democratic primary race, when the progressive Independent U.S. Senator from Vermont, Bernie Sanders, will make official his entry into that contest. His name-recognition is far lower than is Ms. Clinton’s, and he could hardly be more different than she is, in terms of his assets and liabilities as a candidate at the start of the Democratic Presidential primary race; so, there is no scientific way of knowing how that will turn out.

But, given Ms. Clinton’s clearly demonstrated trend thus far, at least between January 2013 and today, anyone who would say — as almost all pundits are saying — that she has the Democratic Presidential nomination all but locked up, is merely pretending to an expertise that no one really has, bloviating instead of analyzing about the 2016 Democratic Presidential race.

Investigative historian Eric Zuesse is the author, most recently, of  They’re Not Even Close: The Democratic vs. Republican Economic Records, 1910-2010, and of CHRIST’S VENTRILOQUISTS: The Event that Created Christianity, and of Feudalism, Fascism, Libertarianism and Economics.