Billionaire Ken Griffin has donated another $25 million to Aurora Mayor Richard Irvin’s Republican gubernatorial bid — meaning Illinois voters should prepare to see even more of an onslaught of television ads and mailers ahead of the June 28 primary.
Griffin contributed the additional $25 million on Monday, according to a report filed with the Illinois State Board of Elections on Thursday. The hedge-fund founder last contributed $20 million to Irvin’s campaign in February.
