U.S. Vice President Joe Biden has announced last Wednesday that he won't be running for president in the 2016 elections.

This decision comes after months of not being able to decide whether he would run or not. During his address, Biden stated that his son Beau's death is one of the reasons why he won't be fighting for the seat.

Biden and family may have given a presidential campaign a thought, but it would now be too late for them to come up with a strong bid. 

Adding to that is the fact that the family has not stopped grieving over Beau, who died of brain cancer in May.

With Biden's announcement, that only puts Hillary Clinton and Senator Bernie Sanders as the frontrunners for the Democratic Party.

In the latest poll conducted by NBC News and the Wall Street Journal, Clinton continues to have a strong presence among Democratic voters and she also had a compelling performance during the first Democratic debate last week.

Clinton garnered 49 percent support among Democratic voters, an increase from last month's 42 percent.

On the other hand, the ABC News poll results also showed good news for the former secretary as she gained 12 points from last month and now has 54 percent support, CBS News reported.

With Biden out of the race, it is likely that Clinton's number will continue to improve.

As for her Democrat rival Sanders, the NBC/WSJ poll showed that the senator's support went down six percentage points, from 35 percent to 29 percent, and 23 percent in the ABC News poll.

Over to the Republican side, it was previously reported that Donald Trump and Ben Carson still fight head to head in the polls, making these two politically inexperienced candidates the frontrunners.

Former Hewlett-Packard CEO Carly Fiorina, on the other hand, is steadily losing points and is now seen to have four percent support from the previous 15 percent.