The job of the president of the United States is simply one of the most difficult in the world.

Of course, those who have been in this post have had years of education to consider, as well as a sort of ingenuity totally different from ordinary people to succeed.
But have you ever wondered who were the wiser and the less intelligent commanders?
If a weak decision has ever been taken from the White House, is this a result of bad luck or foolishness?
Regardless of which party you support the most, you may not be able to believe the results we are making available in the following photo gallery. But first let's learn from where the data came from ...
In 2001, an "e-mail" emerged with data on the wisdom of many US presidents, but even though it was reported as true, experts estimated it was just a trick.
Years later, another study of the wisdom of the presidents was published, conveyed by the TCH.
He used the tools of historiography, a historical study of human progress or individual personal characteristics using statistical analyzes.
This article contains not only the findings of that study, but also of many others similar, with combined estimates of a variety of sources.
Already look at the rankings, from the least wise to the more intelligent one, but always prepare for some surprising results.

Ulysses S. Grant – 120

James Monroe – 128.6

Martin van Buren – 129.4

William Howard Taft – 129.5

James Buchanan – 129.6

Andrew Johnson – 129.7

Zachary Taylor dhe Harry S. Truman – 129.8

Warren Harding – 129.9

George Washington – 130

Barack Obama – 130.1

Franklin D. Roosevelt – 130.5

Ronald Reagan – 131.9

Richard Nixon – 132.6

George H. W. Bush – 133

** George W. Bush – 137**

Abraham Lincoln – 140

Bill Clinton – 149

John F. Kennedy – 149.8

Donald Trump and Hillary Clinton
Due to the time when the IQ study of presidents has been published, there is still no official estimate for President Donald Trump or his rival Hillary Clinton. But during the 2016 election, some reports emerged claiming that Trump coefficient was 156 (one of the brightest of all time), but very quickly it was rejected as something false. And while some may think that Hillary's coefficient is higher than that of her husband, Bill, with an awkward coefficient of 149, others may disagree.