U.S. Treasurys prices turned flat on Wednesday, as encouraging U.S. data overwhelmed the impact of political uncertainty in Europe and turmoil in the Middle East that sent investors scampering for the safety of government debt.

Ahead of a blitz of U.S. data, bond yields, which trade opposite of prices, fell. Portugal's deepening political woes -- and fears about China's slowing economy -- sent European yields soaring, prompting traders to seek haven in the relative security of U.S. government bonds. Unrest in Egypt threatens to topple the government, which has sent oil prices soaring and also sparked demand for safe-haven assets like gold and the U.S. dollar.