The ruling is that States must regulate commerce within their boundaries.
The case Wabash v. Illinois (1886) is about allegations of discrimination by the state's regulations because cost of transporting from New York to Giman Illinois is more cheaper than transporting from Peoria, Illinois to Gilman, Illinois.
In conclusion, the case ruling state that the States must regulate commerce within their boundaries.
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Answer:
The ruling is that States must regulate commerce within their boundaries.
Explanation: