Trump supporters surround Biden bus, attempt to run it off the road

A campaign official at the scene described the group of trucks, emblazoned in giant pro-Trump flags, as trying to run the bus off the road and slow it down.

Yard signs supporting U.S. President Donald Trump and Democratic U.S. presidential nominee and former Vice President Joe Biden (photo credit: REUTERS/AL DRAGO/FILE PHOTO)
Yard signs supporting U.S. President Donald Trump and Democratic U.S. presidential nominee and former Vice President Joe Biden
(photo credit: REUTERS/AL DRAGO/FILE PHOTO)
Supporters of US President Donald Trump trailed the campaign entourage of former vice president and Democratic challenger Joe Biden's tour bus, in a bid to harass and allegedly run its bus off the road Sunday in Texas, in a video that has been circulating on social media. 
A campaign official at the scene described the group of trucks, emblazoned in giant pro-Trump flags, as trying to run the bus off the road and slow it down. In the video, a pro-trump truck can be seen bumping a white truck, which was being driven by a Biden staffer following the tour bus. 

 
Afterwards, Trump tweeted a video of the incident with the caption "I LOVE TEXAS." The incident comes as Americans are only a few days away from voting in the election, which in Texas has seen record-breaking early voting that has far exceeded the number of total votes case in the 2016 election. 
The incident occurred as the Biden campaign was traveling from San Antonio to Austin in a get-out-to-vote effort. A source at the scene told CNN that the trucks were  part of the"Trump Train group." Those that participate in the caravan drive around to different parts of the state in order to support the president, while also displaying pro-Trump paraphernalia. 
Likewise, the group began yelling profanities and obscenities, in addition to blockading the Biden entourage. The group proceeded to slow down the bus to 20 mph on Interstate 35, the unnamed official said. The source also said there were nearly 100 vehicles near the bus. Staffers present on the bus also proceeded to call 911, prompting local law enforcement to assist the bus in arriving to its destination. Nevertheless, both Biden and running mate Kamala Harris remained on the bus. 
Biden campaign aide said of the incident  to CNN: "Rather than engage in productive conversation about the drastically different visions that Joe Biden and Donald Trump have for our country, Trump supporters in Texas today instead decided to put our staff, surrogates, supporters and others in harm's way." 
"Our supporters will continue to organize their communities for Joe Biden, Kamala Harris and Democrats up and down the ballot, and to the Texans who disrupted our events today: We'll see you on November 3rd," he added.
 
The FBI later confirmed they were investigating the incident.
"FBI San Antonio is aware of the incident and investigating," special agent Michelle Lee, a spokeswoman for the Federal Bureau of Investigation in San Antonio, told Reuters in an email. "No further information is available at this time."
Trump took to Twitter to criticize the FBI investigation of his supporters, writing: "In my opinion, these patriots did nothing wrong."
During a campaign stop in Michigan earlier in the day, Trump said: "Did you see our people yesterday? They were protecting his bus."
Texas Republican Party Chairman Allen West, in a statement, dismissed media reports of the incident as "more fake news and propaganda," adding: "Prepare to lose ... stop bothering me."
Reuters contributed to this report.