Question: Which party did the politician elected to Congress in 1847 belong to for the city located on the Mississippi River near its confluence with the Chippewa River?
Sentence (from "John Van Dyke (politician)"): John Van Dyke (April 3, 1807 in Lamington, Somerset County, New Jersey – December 24, 1878 in Wabasha, Minnesota) was an American jurist and Whig Party politician who represented  's 4 congressional district in the United States House of Representatives from 1847 to 1851.
Relevant evidence: Yes