NEW YORK–(BUSINESS WIRE)–On September 11, 2018, Kroll Bond Rating Agency (KBRA) assigned a long-term rating of AA with a Negative Outlook to the Chicago Park District (CPD)’s General Obligation Limited Tax Park Bonds, Series 2018A; General Obligation Limited Tax Refunding Bonds, Series 2018B; General Obligation Limited Tax Refunding Bonds, Taxable Series 2018C; General Obligation Unlimited Tax Park Bonds, Series 2018D (Personal Property Replacement Tax Alternate Revenue Source); and General O