Political pundits often point to Donald Trump’s high unfavorable ratings as the main reason why his presidential campaign will ultimately fail. The conventional wisdom is that Trump is just too unpopular with too many voters to win either the GOP nomination or the presidency itself. A report published over the weekend by Gallup coroborates that theory by putting Trump’s unfavorable ratings in historical context.

Examining recent polling data, Frank Newport, Gallup’s editor in chief, found that the Republican front-runner has a higher unfavorable rating than any nominated candidate from either party going back to 1992, the year Gallup first began tracking candidates’ favorability ratings.