Democratic presidential front- runner Hillary Clinton is tied in a dead heat with Republican Ben Carson and leads three other major Republican candidates for 2016 elections in a hypothetical match-up.
Clinton is tied up with Carson at 47 per cent each, while she leads Donald Trump by 8 points, Jeb Bush by 4 points and Marco Rubio by 3 points, NBC News/The Wall Street Journal poll said.
In the national average of Republican presidential candidates - tabulated by Real Clear Politics - Trump still maintains a marginal lead of 1.3 per cent over Carson, who has emerged as the front-runner in the last two polls.
The popularity of Indian-American presidential aspirant Bobby Jindal which had dipped to less than half a per cent has now increased to one per cent in the RealClearPolitics's average of popular polls.
