"Trump (Donald) trails Clinton by only two percentage points, 42 per cent to 40 per cent, in a poll taken September 1 through September 2," Morning Consult said in its latest poll.
That's little changed from a week earlier, when the Republican candidate was behind the democratic rival by three points, it said.
Almost one-fifth of registered voters (18 per cent) still don't know or have no opinion, despite election day being roughly two months away, Morning Consult said.
Meanwhile, a latest poll released by CBS News, Clinton continues to maintain considerable lead of eight percentage points in Pennsylvania, while in North Carolina she leads by four points.
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About as many Republican voters say Trump's candidacy has
been bad for the party as they believe that his campaign has been positive for Republicans, an extraordinary divide over their own standard-bearer on the eve of the election, the poll said.
Despite how many feel about Trump, more than eight in 10 Republican voters are falling in line behind their nominee.
But Trump receives 55 per cent from whites without college degrees, while Clinton captures just 30 per cent from that group.