American citizens have cast their vote. And they elected Democrat Barack Obama as their next president, who is to remain at the helm of the United States for the following four years.

With all eyes on the first non-white American to be elected president of the nation, Obama has a hard mission to accomplish and a heavy legacy to bear,as well, left behind by former U.S. president George W. Bush.

He has repeatedly told Americans that their nation needed change and that he was ready to take on the responsibility of giving the U.S. the makeover it much required.

Nevertheless, what everybody is now expecting to see come true is the reforming of the health-care system, which has long wanted altering and improvement.

Barack Obama has promised to make health insurance affordable to as many Americans as possible, stating that he would put $50 billion into rendering their medical records to be stored electronically, but analysts believe he will have to fight long and hard to get that amount of money and thus keep his promise.

Given that voters deemed health care as their third major concern and that 80 percent of them have voiced their need for the current system to change, Obama has also pledged to expand Medicaid and the State Children's Health Insurance Program (SCHIP), in order to enable a large part of the 47 million people in the United States who do not have health insurance at the moment to get coverage.

Moreover, he will require that all children be insured and all large or medium companies provide health care plans for their employees.

Throughout his campaign, Barack Obama has made promises to Americans. On November 4, the U.S. citizens showed him they wanted those promises to turn into actions. During the following four years, the ball will only stay in the president-elect’s court. From now on, it’s always his move, with an entire nation watching.