6 Key 2018 Midterm Governor Races to Watch
5. Illinois
One Republican governor who looks to be in most danger of losing re-election is that of Illinois Gov. Bruce Rauner, who is running against Democrat and billionaire venture capitalist J.B. Pritzker
According to FiveThirtyEight, most polls show Rauner, who is also a billionaire, trailing Pritzker by a margin of at least 12 percentage points with more recent polls showing the gap between the two candidates being around 16 to 22 percentage points.
Rauner won his election in 2014 with just 50.3 percent of the vote, compared to the 46.4 percent that voted for Democrat Pat Quinn. Rauner just barely won in the 2018 Republican primary election with just over 51 percent of the vote.
In 2016, Democrat presidential candidate Hillary Clinton won Illinois with 55.8 percent of the vote to Trump's 38.7 percent.