Trump confidently predicted that the campaign in Tulsa would attract tens of thousands of people, but the empty seats surprised him.

When President Donald Trump on June 20 took a helicopter to Andrew's military base to board a special plane to the city of Tulsa, Oklahoma, where he was about to hold his first large-scale election campaign in three months.

Skimming on early-morning television news on the same day, Trump was disappointed not to see images of crowds lined up outside of Bank of Oklahoma, according to a source familiar with the matter.

Still, Trump is confident he can breathe new life into his campaign.

The time the Air Force One took off, things were not getting better.

Two hours before the event, attendees received an urgent message from Trump's campaign: "The American Great Return is imminent! There is still room!".

When Trump landed in Tulsa at 1751, the "sea of people" that the US President expected had not yet formed.

"You are warriors. We have very bad people out there. They are doing very bad things. But I appreciate this very much," Trump told the crowd.

After nearly two hours of speech, Trump left Tulsa in the night.

According to experts, right from the time of planning, the election campaign marking the return of Trump after more than 100 days of suspension to fight Covid-19 had a problem.

The first problem lies at the time of the event.

Although Trump did not consider selecting Tulsa as a meeting place a problem, his advisers from the outset were nervous at the decision to choose a city with a history of racial violence in the middle of the war.

The prospect of thousands of people gathered in a packed hall amidst the serious Covid-19 situation is also a barrier that makes supporters hesitate to attend the event.

Having been held in the White House for months because of the epidemic, Trump has repeatedly asked to schedule a campaign, despite warnings from health officials.

As large protest crowds formed after the death of George Floyd, it became more difficult to persuade the President to postpone the event.

When Trump's will became clearer than ever, the campaign team had to quickly identify a location that would ensure both large crowds and space for the cooperation of the governor of the state and the city.

Tulsa seems to meet all requirements.

In the week before the event, the election campaign caught all of Trump's attention, according to sources familiar with the matter.

"We will be in Oklahoma. And the crowds will be unprecedented, I guess. We have a huge number of bookings," he said.

On June 19, Trump did not schedule any events, seeming to focus on the election campaign the next day.

Knowing that Tulsa would impose a curfew three nights before and after the campaign, Trump called Mayor Tulsa to protest.

By the morning of 20/6, everything happened suddenly in a direction that was not as he expected with a series of bad news.

"The event in Oklahoma was incredible. The crowd was unbelievable. They had never seen anything like that before," Trump said before leaving the lawn south of the White House.

But in Tulsa is a different story.

After Trump finished his speech, a source familiar with the matter said two Secret Service agents were positive for nCoV.