In his latest column in The Baltimore Sun titled, “The GOP chamber puzzle,” Political Science Professor Thomas Schaller writes about how the Republican party holding a majority in the U.S. House of Representatives but not in the Senate is an historical anomaly. “As I explain in ‘The Stronghold,’ my forthcoming book from Yale University Press, Republicans have been a stronger presence in the Senate in the past half century party because more of the small-population states lean Republican. Therefore, the GOP has consistently held a higher share of Senate seats than the population contained in the states the party’s senators represent,” Schaller …