A Campbell's vice president claimed George Soros' foundation is helping a caravan of migrants get into the United States.

Campbell Soup has distanced itself from claims made by Kelly Johnston, who is the company's vice president of government affairs, after he got into a Twitter row over the 14,000 migrants making their way through Central America towards the US.

The soup lobbyist wrote that the Open Society Foundations had arranged for 'troop carriers' and 'rail cars' to support the caravan, which formed in Honduras around a week ago.

Yesterday a pipe bomb was found in the mailbox of investor and Democrat supporter George Soros' home in Manhattan.

The 88-year-old billionaire was not at home at the time and a quick-thinking employee took the improvised device, whihc was found not to be a hoax, into woodland.

Kelly Johnston, Campbell's vice president of government affairs, accused financier George Soros of funding the migrant caravan

The 14,000-strong caravan formed in Honduras a week ago and is heading through Central America towards the US

Johnston said the caravan was 'planned and executed' by the Open Society, which was set up by Democrat supporter Soros

When criticized for HIS conspiracy theories, Johnston said he would not be intimidated by threats to inform his employers about the posts

Johnston, who is a former Secretary of the US Senate under Republican, Bob Dole, also said the conspiracy planned 'where they defecate'.

In a tweet sent on Monday he said: 'See those vans on the right? What you don't see are the troop carriers and the rail cars taking them north. @OpenSociety planned and is executing this, including where they defecate. And they have an army of American immigration lawyers waiting at the border.'

He appeared to write the tweet in response to a post asking 'where do they go to the bathroom?' alongside a picture of the migrants of their journey.

A mile-long caravan of more than 14,000 migrants formed in Honduras more than a week ago.

The migrants, who say they are fleeing poverty and violence, are making their way through Mexico to the US border.

When challenged about his claims Johnston replied: 'Hey, everyone meet a miscreant from The Left who thinks he can intimidate me by trying to use my employer to silence me on @Twitter. It will not work. Feel free to tell him what you think of him and either report of block him.'

A pipe bomb was put in the letterbox of George Soros' Manhattan home yesterday. He has often been the target of right-wing anti-Semitic conspiracy theories

Soros was not at home when the explosive device, which was not a hoax, was found and an employee rushed it to a wooded area

Johnston's Twitter account has since been deleted and the tweet is no longer online but screen grabs of the tweet were posted by other social media users.

A company spokesman said in a statement New York Times reporter, Kenneth Vogel: 'The opinions Mr Johnston expresses on Twitter are his individual views and do not represent the position of Campbell Soup Company.'

The Open Society Foundations, which seeks to promote democracy around the globe, dismissed the allegations.

A tweet posted yesterday from the foundation's official account, said: 'Neither Mr Soros nor Open Society is funding this effort. We are surprised to see a Campbell Soup executive spreading false stories.

'We do support the historic US commitment to welcoming people fleeing oppression and violence in their homelands.'

The caravan has been seized upon as a political issue ahead of the November mid-terms, with President Trump threatening to declare a 'national emergency' and that he would use 'as many troops as necessary' to stop them from entering the US.

Vice President Mike Pence yesterday claimed terrorists could be using the caravan to sneak into the United States.

Trump threatening to declare a 'national emergency' and that he would use 'as many troops as necessary' to stop the migrants from entering the US

The migrants, who say they are fleeing poverty and violence, are making their way through Mexico to the US border

Kelly, who once worked for Republican Bob Dole, initially retaliated to Twitter users who challenged his Soros post

He said: 'It's inconceivable that there are not people of Middle Eastern descent in a crowd of more than 7,000 people advancing toward our border.'

Billionaire Soros, who is Jewish, has often been targeted of far-right conspiracy theories and racist abuse.

The Hungarian-born investor, who is thought to be worth around $8bn, has been accused of turning other Jews over to the Nazis and stealing their riches, despite only being 14 years old at the time.

His family were also forced to hide from the Hungarian government during the German occupation.

Due to his opposition to Brexit, he was also accused of bankrolling a 'secret plot' to reverse the June 2016 referendum in articles quoting anti-Semitic conspiracy theories.

Before becoming a lobbyist, Johnston spent 25 years in Washington DC, in a variety of leadership positions in the executive and legislative branches of the federal government as Secretary of the US Senate, the Senate’s Chief Legislative, Financial, and Administrative Officer and Staff Director of the Senate Republican Policy Committee.