According to the results of the poll, conducted by Langer Research Associates, a total of 53 percent of the respondents said that they supported the Democratic Party, while 42 percent of the US citizens who took part in the poll said they would vote for the Republicans.
Trump's approval rating, in turn, has increased compared to August by five percentage points, from 36 percent to 41 percent, and is now his second highest since he took office. However, the poll said that his average approval rating is the lowest one for a US president after his first 20 months in the White House since the late 1940s.
The midterm election to the US Congress is scheduled to be held on November 6. The US voters will elect all 435 members of the House of Representatives and around a third of all US senators.
The poll was conducted for the ABC News broadcaster and The Washington Post newspaper among a total of 1,144 respondents over the phone between October 8-11.