Republican gubernatorial candidate Bruce Rauner

Republican candidate Bruce Rauner's personal campaign contributions total about $9.6 million. ((Antonio Perez/Chicago Tribune) / July 11, 2014)

Republican governor hopeful Bruce Rauner reached into his pocket for another $1.5 million to fund his challenge of Democratic Gov. Pat Quinn, bringing to nearly $10 million the amount he has tapped his wallet for since launching his campaign in March 2013, records showed Friday.

The latest contribution puts Rauner's self financing at about $9.6 million. Rauner, an equity investor from Winnetka, is possibly the wealthiest candidate to seek statewide office in Illinois.

Rauner reported starting July with $3.5 million in his campaign fund after raising more than $8 million and spending nearly $9.5 million from April through June. Since then, his campaign has reported raising more than $7.2 million. That includes $3 million in personal funds and another $2.5 million from the Republican Governors Association, which has now given Rauner $4 million.

Also Friday, Quinn's campaign reported a $500,000 contribution from the Democratic Governors Association. The group has now given Quinn $1.625 million. Quinn, seeking a second term, reported starting last month with nearly $11.7 million in his campaign account, raising more than $3.7 million during the second quarter while spending $878,000. Since July 1, Quinn's campaign has raised nearly $1.1 million, state records show.

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