President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE has placed last among U.S. commanders in chief in a recent survey of experts.

The 2018 Presidents and Executive Politics Presidential Greatness Survey asks respondents, each of them current and recent members of the Presidents and Executive Politics Section of the American Political Science Association, to rate each president on a scale of 0-100 for overall greatness.

Abraham Lincoln topped the list with an average score of 95.03, followed by George Washington with 92.59. The top seven slots remained unchanged from when the survey was conducted last in 2014.

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Former President Obama placed eighth on the list, with an average score of 71.13, jumping 10 places from the previous survey.

Trump took the bottom slot with an average score of 12.34. Among those who identified as Republicans and conservatives, Trump ranked 40th.

Obama came in second place when respondents were asked who should be the next president on Mount Rushmore, though he was well behind runaway favorite Franklin Delano Roosevelt.

The survey was conducted from Dec. 22, 2017, to Jan. 16. It was based on responses from 170 experts.