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Have you ever wondered which Member of Congress has the best vocabulary? Or the worst?

A new interactive map helps to crack the mystery.

The map shows the “breadth of vocabulary of each of the nation’s 435 voting Representatives. A darker green color indicates that a Rep has a larger vocabulary.”

Who have the 10 highest scores?
In order, the Representatives with the 10 highest SQPD Index values are as follows:

Sheila Jackson Lee, (D-TX): 4.79
Christopher H. Smith, (R-NJ): 2.98
Dennis Kucinich, (D-OH): 1.00
Steve King, (R-IA): 0.99
Barney Frank, (D-MA): 0.97
Charles Rangel, (D-NY): 0.95
John Conyers, (D-MI): 0.92
Ronald Ernest Paul, (R-TX): 0.87
Steny Hoyer, (D-MD): 0.84
Marcy Kaptur, (D-OH): 0.84

Note: There are 7 Democrats and 3 Republicans on the list.

Launch the map.