A new opinion poll shows that US Democratic presidential nominee Hillary Clinton enjoys an indisputably colossal lead in African-American votes over her Republican rival, Donald Trump, in the run-up to the 2016 US presidential race.

According to an NBC News/Wall Street Journal survey released on Thursday, the former secretary of state has 91 percent of black votes as compared to the New York businessman with only a one-percent support.

The poll also revealed that Clinton boasts an edge over Trump regarding women voters across the US with 51 percent to 35.

As to the US young pollsters, 46 percent preferred the Democratic presidential nominee to Trump picked by just 34 percent.

The opinion poll shows the real estate mogul being trailed by Clinton only among white voters with 45 to 40 percent.

In a different survey released on the same day, the former secretary of state holds a nationwide lead of 15-percentage point over her Republican rival, with 48 percent of the votes as compared to Trump’s 33-percent support.

Earlier last month, Gallup released a poll indicating that Trump and Clinton were currently among the worst-rated presidential candidates of the last 70 years.

When Americans were asked what comes to mind when they think of Clinton, 27 percent said they did not trust her, 13 percent said they did not like her and eight percent said she is a “criminal” or “corrupt.”

The latest responses reflect that many Americans continue to see Clinton as dishonest and untrustworthy and dislike her in general.

Trump also evoked a variety of negative reactions about his personality. Sixteen percent said they disliked him, while 12 percent described him as an "idiot" or a "joke" and 10 percent as a "racist" or a "bigot."

Eight percent viewed him as "reckless" or "dangerous" and seven percent as someone who speaks without thinking.