The whopping $66 million spent on ads in the Democratic and Republican primaries for Illinois governor made it the most expensive non-presidential primary of all time, according to the ad-tracking firm Advertising Analytics. 

And because of the winners last night — incumbent Republican Gov. Bruce Rauner (who spent more than $16 million over the airwaves) and Democrat J.B. Pritzker (who spent more than $33 million on ads) — the general election is likely destined to be the most expensive gubernatorial contest in history.

Advertising Analytics projects total spending could exceed $150 million. 

The previous most expensive non-presidential primary of all time was the 2016 New Hampshire Senate primary, Advertising Analytics says.