Donald John Trump. Take a gander at this Politifact piece.
650 Fact Checks of all the candidates in both parties.
All kinds of wonderful graphics to show the comparisons on truthfulness among the candidates
Let’s go in ascending order of total number of Pants on Fire ratings for the ten candidates whose statements they checked.
Bernie Sanders — zero
Jeb Bush — one
Chris Christie — one
Carlie Fiorina — one
Hillary Clinton — one
Marco Rubio — two
Ted Cruz — three
total of above 7 candidates - 9
and all by himself
the presumptive nominee of the Republican Party
Donald John Trump?
THIRTY
TWENTYONE more than the other 9 combined.
Make of this what you want.