Obama's presidency saw an extended battle over taxes that ultimately led to the permanent extension of most of the Bush tax cuts, which had been enacted between 2001 and 2003. Those tax cuts were set to expire during Obama's presidency since they were originally passed using a Congressional maneuver known as reconciliation, and had to fulfill the long-term deficit requirements of the 'Byrd rule.' During the lame duck session of the 111th Congress, Obama and Republicans wrangled over the ultimate fate of the cuts. The proposed 1,000-mile (1,600 km) pipeline would have connected Canada's oil sands with the Gulf of Mexico. According to exit polls, Obama won a majority of the vote from women, blacks, Hispanics, Asians, people under 45, people making less than $50,000 per year, people inhabiting large or mid-sized cities, liberals, moderates, the unmarried, gays, and people with no college education, some college education, or graduate degrees.