Lou Dobbs, a conservative commentator, has alleging that news of suspicious packages sent to notable critics of President Donald Trump are fabricated in a now-deleted tweet.

“Fake News — Fake Bombs,” Mr Dobbs wrote in the tweet, void of any evidence. “Who could possibly benefit by so much fakery?”

On Thursday former Vice President Joe Biden and actor Robert De Niro were added to a list of high-profile Democrats and Trump critics who had been sent suspected explosive devices or suspicious packages. Former Presidents Barack Obama, Bill Clinton, former CIA director John Brennan, former attorney general Eric Holder, and 2016 presidential candidate Hillary Clinton and Congresswoman Maxine Waters had been sent such items on Tuesday and Wednesday. A package had also been sent to billionaire George Soros on Monday.

Mr Dobbs, who hosts an eponymous show on Fox Business, is not the only person claiming the recent bomb scares as “false flag” operations.

Former FBI Assistant Director Chris Swecker went on Fox News on Wednesday and suggested the bomb threats were carried out by someone “trying to get the democratic vote out” ahead of the midterm elections next month. Frank Gaffney, who served as an adviser to Mr Trump’s transition team, tweeted that the suspicious packages sent to prominent progressive personalities are a left-wing “deflection” technique.

“None of the leftists ostensibly targeted for pipe-bombs were actually at serious risk, since security details would be screening their mail,” Mr Gaffney tweeted. “So let’s determine not only who is responsible for these bombs, but whether they were trying to deflect attention from the Left’s mobs.”

Rush Limbaugh, an infamous conservative radio personality, suggested on his show that a Democrat might have sent those packages to make Mr Trump look bad. “Republicans just don’t do this sort of thing,” Mr Limbaugh said.

He went on to suggest journalists have a nefarious liberal agenda and often falsely accuse perpetrators of attacks to be right-wing.

“Even though every event, like mass shootings, remember, every mass shooting there is, the Democrats in the media try to make everybody think right off the bat that some tea partier did it, or some talk radio fan did it, or some Fox News viewer did it,” Mr Limbaugh added. “Turns out, it’s never, ever the case.”

Neither Mr Dobbs, Mr Swecker, Mr Gaffney, or Mr Limbaugh have provided evidence to prove their “false flag” attack claims.

In pictures: President Donald Trump on tour Show all 39 1 /39 In pictures: President Donald Trump on tour In pictures: President Donald Trump on tour 20 May 2017 US President Donald Trump and Saudi Arabia's King Salman bin Abdulaziz al-Saud arriving for a reception ahead of a banquet at Murabba Palace in Riyadh Getty Images In pictures: President Donald Trump on tour 20 May 2017 US President Donald Trump, accompanied by First Lady Melania Trump, and Saudi Arabia's King Salman bin Abdulaziz al-Saud being welcomed at Murabba Palace in Riyadh Getty Images In pictures: President Donald Trump on tour 20 May 2017 US President Donald J. Trump with King of Saudi Arabia Salman bin Abdulaziz Al Saud during a welcome ceremony with traditional sword dancers at Murabba Palace, in Riyadh, Saudi Arabia EPA In pictures: President Donald Trump on tour 20 May 2017 King of Saudi Arabia Salman bin Abdulaziz Al Saud with US President Donald J. Trump and wife Melania during a welcome ceremony at Murabba Palace, in Riyadh, Saudi Arabia EPA In pictures: President Donald Trump on tour 20 May 2017 US President Donald Trump adjusts the Collar of Abdulaziz Al Saud Medal, after it was bestowed upon him by Saudi Arabia's King Salman bin Abdulaziz Al Saud at the Royal Court in Riyadh, Saudi Arabia Reuters In pictures: President Donald Trump on tour 20 May 2017 Saudi Arabia's King Salman bin Abdulaziz Al Saud presents U.S. President Donald Trump with the Collar of Abdulaziz Al Saud Medal at the Royal Court in Riyadh, Saudi Arabia Reuters In pictures: President Donald Trump on tour 21 May 2017 Palestinians print posters depicting US President Donald Trump in preparations for his planned visit, in the West Bank town of Bethlehem Reuters In pictures: President Donald Trump on tour 21 May 2017 US President Donald Trump accompanied by first lady Melania Trump, his daughter Ivanka Trump and her husband White House senior advisor Jared Kushner, before delivering his remarks to the Arab Islamic American Summit in Riyadh, Saudi Arabia Reuters In pictures: President Donald Trump on tour 21 May 2017 US President Donald Trump looks on as U.S. Secretary of State Rex Tillerson and Saudi Arabia's Crown Prince Muhammad bin Nayef exchange a memorandum of understanding Reuters In pictures: President Donald Trump on tour 21 May 2017 First Lady Melania Trump shares a laugh with a child during a visit to the American International School in the Saudi capital Riyadh Getty Images In pictures: President Donald Trump on tour 21 May 2017 US President Donald Trump holds a bilateral meeting with Bahrain's King Hamad bin Isa Al Khalifa AP In pictures: President Donald Trump on tour 22 May 2017 Israeli soldiers rest during preparations ahead of President Trump's landing in Tel Aviv, Israel Getty Images In pictures: President Donald Trump on tour 22 May 2017 First Lady Melania Trump makes her way to board Air Force One in Riyadh as she heads with her husband the US President to Israel Getty Images In pictures: President Donald Trump on tour 22 May 2017 US President Donald Trump and first lady Melania Trump board Air Force One for Israel, the next stop in Trump's international tour, at King Khalid International Airport AP In pictures: President Donald Trump on tour 22 May 2017 Israeli soldiers wait for the arrival ceremony of US President Donald Trump at Ben Gurion airport near Tel Aviv, Israel AP In pictures: President Donald Trump on tour 22 May 2017 US President Donald Trump and first lady Melania Trump arrive aboard Air Force One at Ben Gurion International Airport in Lod near Tel Aviv, Israel Reuters In pictures: President Donald Trump on tour 22 May 2017 US President Donald Trump and first lady Melania Trump disembark Air Force One on arrival at Ben Gurion International Airport AP In pictures: President Donald Trump on tour 22 May 2017 US President Donald J. 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Trump, touches the Western Wall, Judaism's holiest prayer site, in Jerusalem's Old City EPA In pictures: President Donald Trump on tour 22 May 2017 President Donald Trump visits the Western Wall AP In pictures: President Donald Trump on tour 24 May 2017 US President Donald J. 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If, however, these suspicious packages were intended to scare Americans into voting Democrat on Election Day, the evidence does not add up. James Cavanaugh, a former special agent for the Bureau of Alcohol, Tobacco and Firearms (ATF), believe these suspicious packages were meant to inflict harm.

“In addition, law enforcement sources now say two bombs were sent to Rep. Maxine Waters and two were sent to former Vice President Joe Biden in Delaware,” Mr Cavanaugh wrote in a NBC News op-ed. “You don't send two bombs to scare somebody. You send two bombs to try to kill somebody.”

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The former ATF special agent also mentioned apparent glass shrapnel found in some packages also are another indicator that the packages were not intended as a scare tactic.