MIDDLEBURY, Vt. — With Super Tuesday behind us, the primary races are giving us strong hints of what the general election will look like. Donald Trump and Hillary Clinton both had commanding victories that will be very difficult for their rivals to overcome in the coming weeks.

The ascendancy of Trump continues to trouble the Republican establishment, while baffling political scientists who failed to predict his wild success in the primary race. In this installment of Professor Pundits, Matt and Bert theorize about why so many people missed Trump’s insurgent candidacy as they look ahead to the remaining primary races.

Dickinson writes the blog Presidential Power and is frequently quoted in the national news media. He often live tweets political events at @MattDickinson44. Johnson, also a regular in the national media, tweets at @bnjohns.