Fancy cars. Luxury hotels. Trips to the tropics and beyond. Money paid to “unknown.” Meals bought in bars without kitchens and money sent to an address that doesn’t exist. All this and more appears on campaign disclosure reports filed by Illinois legislators, who are barred from spending campaign money on anything but expenses connected with political or government work. But a review of campaign expenditure reports filed by all 177 members of the General Assembly shows that rules can be stretched as legislators rack up huge bills for dining, lodging, airfare. Consider Sen. Kimberly Lightford, D-Westchester. Twice since 2013, Lightford...