The flag used by the Southern states during the American Civil War is, in many eyes, a symbol of racism and slavery, but has been popular with many Nascar supporters. The flag was banned on June 10 after heavy pressure where several black sports stars were driving, including Nascar driver Bubba Wallace.

Eleven days after the ban, a snare was found in Wallace's depot, something Nascar saw as a racist act. The FBI investigated the case and concluded that the snare had been hanging there since October.

The number of viewers has increased

On Monday, Trump took to Twitter to criticize Nascar and Wallace.

"Did Bubba Wallace apologize to all the great Nascar drivers and organizers who supported him, stood by his side and were willing to sacrifice everything for him, only to find out it was just a scam?", He writes .

"That and the flag decision has given the lowest viewership figures ever," the president continues.

However, figures from Nascar show that viewership has increased by 30 percent compared to last year, reports Speed ​​Report.