A helicopter wrapped in ‘Trump 2020’ advertising has “trolled” a campaign rally for Bernie Sanders in Phoenix, Arizona.

Supporters of President Donald Trump flew the helicopter over the Arizona Veterans Memorial Coliseum on Thursday as rally goers shouted at and “flipped off” the aircraft, reported Newsweek.

The stunt was claimed by “The Trump Chopper”, a pro-Trump campaign run by two private individuals, Scott Urschel and Scott Glover.

The duo do not appear to have any connection to the official Trump campaign. On their website, Mr Urschel and Mr Glover said they fly the helicopter to “get the message out for our president”.

Mr Sanders’ rally in Phoenix comes shortly after the US presidential primary elections, Super Tuesday, that saw the Vermont senator receive fewer delegates than his rival Joe Biden.

In pictures: Bernie Sanders celebrates Nevada caucus win Show all 5 1 /5 In pictures: Bernie Sanders celebrates Nevada caucus win In pictures: Bernie Sanders celebrates Nevada caucus win Bernie Sanders and his wife Jane, triumphant at hearing of Nevada Caucus win. in San Antonio Texas on 22 February 2020 Reuters In pictures: Bernie Sanders celebrates Nevada caucus win Bernie Sanders embraces his wife Jane at rally in San Antonio Texas on 22 February 2020 REUTERS In pictures: Bernie Sanders celebrates Nevada caucus win U.S. Democratic presidential candidate Senator Bernie Sanders celebrates with his wife Jane after being declared the winner of the Nevada Caucus as he holds a campaign rally in San Antonio, Texas, U.S., February 22, 2020. REUTERS/Callaghan O'hare REUTERS In pictures: Bernie Sanders celebrates Nevada caucus win Bernie support raises sign and a thumbs-up to the news of Senator Sanders' win REUTERS In pictures: Bernie Sanders celebrates Nevada caucus win Bernie supporter cheer at the news of Sanders' win REUTERS

He sought to reignite support for his campaign and vowed to continue fighting to secure the Democratic Party’s nomination in his speech.

To supporters of Elizabeth Warren, who dropped out of the race on Thursday, Mr Sanders had an invitation: “Tonight, we invite Senator Warren’s supporters into our campaign”.

He praised Ms Warren as a “good friend” and congratulated her for leading a “strong, issue-oriented campaign”.

With Ms Warren gone, Mr Sanders and Mr Biden remain the only two major Democratic candidates left in the race for presidential nomination.

“Joe Biden is a decent guy and I know that if I win the nomination, he’ll be there for me,” said Mr Sanders. “And if he wins, I’ll be there for him. Our differences are minimal compared to the differences we have with Trump.”

He also described Mr Biden as “an old friend”.