Republicans say this is their best shot at winning the governor's seat since Rauner gave a good showing Tuesday, beating three long-time state lawmakers. Democrats may have held the governorship since 2003, but that doesn't mean incumbent Governor Pat Quinn has a sure shot at keeping his seat.
"It's really a toss up at this point."
Come November, Governor Quinn and Bruce Rauner will face off in the general election.
"He's going to give Pat Quinn, a real run for his money."
"He's going to have unlimited money. He's very disciplined. He takes advice, which lots of first-time candidates don't."
His weaknesses? Unlike Governor Quinn, he's new to the political scene and he didn't appeal to too many downstate voters in Tuesday's primary. Political scientist Kent Redfield says he'll have to give a little.
"As Rauner pivots to the general, he has to become less strident on collective bargaining and unions."
For Quinn? His five years in office are sure to pack a punch. Voters know his name and he has a track record to back it up. But, he still has work to do to reach some Democrats.
"Quinn's challenges are that he needs to maintain his base and make sure that he gets the union support."
But, for some uncertain voters on the street, the strengths and weaknesses of the candidates aren't as black and white.
"They're all going to pitch their slogans for themselves and contrary for the opponent still. I still have to do research."
Uncertain voters may take a little more convincing.
"I think he'll be able to back up some of them promises, but only time will tell, you know."
Only time will tell. The election isn't until November 4. There's a lot of time between now and then.
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