Louisiana Purchase part (4)

I believe the answer is:

iowa

'louisiana purchase part' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for iowa that I've seen before include "part of United States" , "part of US" , "Midwest US state" , "US swing electoral state" , "US state, three vowels" .)

I've seen this clue in the Newsday.com and The Wall Street Journal.

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