1 In a twin pregnancy. the average is 37 weeks. for triplets 34 and quadruplets 32 weeks. 2  The average birth weight for singletons is 7 lbs 7 oz. 3  Average birth weight of twins is 5 lbs 5 oz. for triplets 4lbs and quads 3lbs. 4  A difference in birth weight between multiples is not unusual.
So, sometime between the 1860s and 1936, the (Democratic) party of small government became the party of big government, and the (Republican) party of big government became rhetorically committed to curbing federal power.
2012 Election: GOP Senator Says Tea Party Killed Republican Majority. As the 2012 elections loom, both parties are starting to pour resources into congressional and gubernatorial races across the country. While Republicans work to regain control of the Senate, Democrats are vying to pick up seats in the GOP-controlled House.