The re-election of Barack Obama as the president is expected to make the United States a more liberal country of the 21st-century.

Obama who advocated equality for all, irrespective of class or origin, secured 303 votes, while his contender Mitt Romney could bag only 206 votes.

After winning the election, Obama addressed a packed stadium of supporters in the core of downtown Chicago. He thanked his supporters for helping him get re-elected and promised that he would make the United States an inclusive and economically secure country.

Speaking on the topic, he added, "I believe we can keep the promise of our founding, the idea that if you're willing to work hard, it doesn't matter who you are or where you come from or what you look like or where you love."

Romney had taken a hard line on immigration, which many believe hurt his standing with Hispanic and Asian voters.

Obama was also able to benefit from several blunders by Republican politicians during the campaign on sensitive issues such as abortion and rape.

Obama's re-election set several new records. He got re-elected with the largest share of the popular vote for any incumbent since Ronald Reagan's re-election in 1984. He became the first Democratic president since Franklin D. Roosevelt to secure over 50 per cent of the popular votes in two elections. His Democratic party made gains in the Senate as well as the House of Representatives.