More Republicans expect Hillary Clinton to win race for the White House in wake of latest Donald Trump controversies

The Republican candidate has come under fire in recent weeks for his remarks about women and the integrity of the electoral process

Republican belief in Donald Trump has been sliding (Getty Images)

More Republicans now believe that Democrat Hillary Clinton will win the November presidential election ahead of their own candidate Donald Trump, according to a new survey.

41 per cent of Republicans now expect Mrs Clinton to win the race, versus 40 per cent who say they are still backing Mr Trump, in a Reuters/Ipsos poll released on Wednesday and conducted between October 20 and 24.

Among Mr Trump's supporters, 49 per cent said they believed Trump would win in the latest poll, down from 67 per cent at the beginning of October.

Though within the margin of error, the findings reflected a notable slump in Republican confidence, following a month in which their campaign has had to deal with the fallout of the Trump Tapes and allegations of sexual harassment against their candidate.

Mr Trump also rattled traditional conservatives by claiming the electoral system was rigged and hinting that he would not accept the outcome of the vote if it went against him.

In September, 58 per cent of Republicans said they thought their party's nominee would win, versus 23 per cent who expected Clinton to prevail.

However, despite the abiding pessimism surrounding Mr Trump’s chances and public rebukes made against him by a number of high-profile Republican stalwarts, he still enjoys unwavering support from a commited right-wing fanbase.

79 per cent of likely Republican voters said they would vote for him, many with the expectation that he would promote a conservative agenda in Congress and appoint conservative justices to the Supreme Court.

The events of the last month also appeared to have played into the hands of the Democratic Party, who are now strongly anticipating a Clinton presidency.

In the poll, some 83 per cent of Democrats said they thought Mrs Clinton would win, while only eight per cent predicted that Trump would become president.

Among Ms Clinton's supporters, 92 per cent expected her to win, up from 83 per cent a month earlier.

While the media has tended to focus on Donald Trump, Ms Clinton has escaped much of the scrutiny levelled at her rival. However, she has also received heavy criticism for using a personal email server to access classified documents.

Reuters contributed to this report