Hillary Clinton speaking at an event. REUTERS/Las Vegas Sun/Steve Marcus A new poll of the 2016 presidential race contains a frightening number for two of the top potential candidates, Republican Jeb Bush and Democrat Hillary Clinton.

About 39% of voters would prefer a president who isn't from the Bush or Clinton political dynasties, according to the poll, which was released Monday and was conducted by NBC News and the Wall Street Journal.

That's scary for Bush and Clinton, as it is a problem with no obvious solution.

Bush is the son of former President George H.W. Bush and the brother of former President George W. Bush. Clinton's husband is former President Bill Clinton.

That 39% was not the only negative number that came out Monday.

The pollsters asked respondents whether they would feel more or less favorable about a presidential candidate who was not from the Bush or Clinton families. About 22% of voters said they would feel "much more favorable" about a candidate who was not from the two families, and 17% said they would have a "somewhat more favorable" impression about someone who is not a Bush or Clinton.

Only 8% of voters indicated they would feel less favorable about a candidate who was not a Bush or a Clinton; 51% were undecided about the question, and 2% were not sure.

These numbers clearly suggest that family ties could be an obstacle for both Clinton and Bush as they mull whether to enter the 2016 race.

Jeb Bush at the Republican National Convention. AP/Jae C. Hong And the question about their families wasn't the only part of the poll that looked bad for Bush and Clinton. The pollsters asked voters what they thought about potential Bush and Clinton presidencies. A majority of respondents said both candidates would "represent too much of a return to the policies of the past" if they were elected.

The poll found 60% of voters believed Bush would be a "return to the policies of the past" compared with just 27% who said he would "provide the new ideas and vision the country will need for the future."

Clinton's numbers were slightly better. The poll showed 51% of respondents thought she would be too much of a "return to the policies of the past" and 44% said she would bring "new ideas."

However, there were also indications that both Clinton and Bush could get past this issue.

The poll showed 49% of Republican primary voters could see themselves supporting Bush. This made him one of the top four potential GOP candidates behind Florida Sen. Marco Rubio, who had the support of 56% of voters, Wisconsin Gov. Scott Walker, who was at 53%, and former Arkansas Gov. Mike Huckabee, who had 52%.

While Bush is most likely going to face a crowded primary field, Clinton is expected to have little competition. The poll showed 63% of Democrats were satisfied with their choices in the primary, and 61% were not concerned about whether Clinton would face a challenger. Only 38% of Democrats polled indicated they hoped an opponent for Clinton would emerge.