Barack Obama has blasted Republican nominee Donald Trump’s recent remarks about women, saying they would be intolerable even for someone applying for a job at a 7-Eleven convenience store.

At a rally supporting Democratic candidate Hillary Clinton, President Obama also urged senior Republicans to formally withdraw their endorsement of Donald Trump as presidential candidate.

Many top Republicans have withdrawn their support for Donald Trump afer a video in which he boasts of groping women emerged last week.

Donald Trump accused them of disloyalty.

The New York billionaire was particularly scathing about House Speaker Paul Ryan whom he described as a “weak and ineffective” leader.

Addressing a campaign rally in Greensboro, North Carolina, on October 11, Barack Obama referred to Donald Trump’s crude remarks about women, saying: “Now you find a situation in which the guy says stuff that nobody would find tolerable if they were applying for a job at 7-Eleven.”

The president said: “You don’t have to be a husband or a father to say that’s not right. You just have to be a decent human being.”

Barack Obama questioned how senior Republican politicians could still want Donald Trump to be president.

“The fact is that now you’ve got people saying: <<We strongly disagree, we really disapprove… but we’re still endorsing him>>. They still think he should be president, that doesn’t make sense to me,” he told the crowd.

Barack Obama was interrupted several times by anti-Clinton campaigners but seemed unfazed, saying: “This is democracy at work. This is great.”

The hecklers were escorted from the venue by security officials.

In another development, Hillary Clinton’s Campaign Chairman John Podesta has said that Russia was behind an apparent hacking of his emails and may have been colluding with the Trump campaign.

John Podesta said on October 11 that the FBI was investigating the hacking of the emails that were published by WikiLeaks.

The 2005 video released on October 7 revealed Donald Trump describing how he had sought to have s** with a married woman and making other aggressive comments about women.

Nearly half of the 331 incumbent Republican senators, House members and governors have condemned the lewd remarks and about 10% have called for Donald Trump to drop out of the race, according to Reuters.

On October 10, Paul Ryan said he would not defend Donald Trump over the remarks.

Paul Ryan told fellow House Republicans he would instead focus on congressional elections to ensure Republicans could maintain legislative control.

Donald Trump fired back in a string of tweets, saying the “shackles” had been removed, allowing him to “fight for America the way I want to”.

He said he neither wanted nor needed Paul Ryan’s support.

Donald Trump said “disloyal” Republicans “come at you from all sides. They don’t know how to win – I will teach them!”

He attacked Senator John McCain, who has denounced Donald Trump’s conduct and faces a close re-election battle in Arizona, as “foul-mouthed”.

Despite a widening divide within the Republican Party, some members insist they are sticking by Donald Trump.

New Jersey Gov. Chris Christie said he was “really disturbed” by Donald Trump’s comments about women but still planned to support him, saying the election was “about bigger issues than that”.

Texas Senator and former rival Ted Cruz also said he would still cast his ballot for Donald Trump, telling a Texas TV station that Hillary Clinton was an “absolute disaster”.

Donald Trump delivered a gaffe while addressing supporters in Florida on October 11, telling them to go out and vote on the wrong date.

ABC News footage showed Donald Trump saying: “Go and register. Make sure you get out and vote, November 28.”

The election date is November 8.

A recent PRRI/Atlantic poll suggested Hillary Clinton holds a 49-38 lead over Donald Trump.