Thousands of protesters gathered in 200 cities across Brazil on Wednesday, to demonstrate against Jair Bolsonaro’s controversial education policies.

Brazil’s National Student Union called for the rallies after accusing the far-right leader of cutting education funding.

The country’s education ministry had earlier announced that it was freezing nearly a quarter of discretionary government spending.

Mr Bolsonaro denied the existence of budget cuts and dismissed the protesters as “useful idiots and imbeciles”.

But Wednesday’s student protests are thought to be the biggest in Brazil since Dilma Rousseff’s 2016 impeachment.

Jair Bolsonaro: Brazil's far-right leader inauguration Show all 20 1 /20 Jair Bolsonaro: Brazil's far-right leader inauguration Jair Bolsonaro: Brazil's far-right leader inauguration Brazil's new President Jair Bolsonaro waves as he drives past before his swear-in ceremony Reuters Jair Bolsonaro: Brazil's far-right leader inauguration Supporters wait in front of the Planalto Palace, where he will take office EPA Jair Bolsonaro: Brazil's far-right leader inauguration Jair Bolsonaro gestures at the Congress before he is sworn AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Supporters take pictures as Brazil's new President Jair Bolsonaro drives past Reuters Jair Bolsonaro: Brazil's far-right leader inauguration Flanked by first lady Michelle Bolsonaro, Brazil's President Jair Bolsonaro waves to the crowd, as he rides in an open car after his swearing-in ceremony AP Jair Bolsonaro: Brazil's far-right leader inauguration Jair Bolsonaro reacts as he drives past Reuters Jair Bolsonaro: Brazil's far-right leader inauguration Brazil's new President Jair Bolsonaro reacts as he drives past before his swear-in ceremony, in Brasilia, Brazil January 1, 2019. REUTERS/Ricardo Moraes RICARDO MORAES Reuters Jair Bolsonaro: Brazil's far-right leader inauguration The National Congress before Brazil's President-elect Jair Bolsonaro is sworn in AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Jair Bolsonaro gestures at the Congress AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Brazil's new President Jair Bolsonaro waves as he drives past before his swear-in ceremony, in Brasilia, Brazil January 1, 2019. REUTERS/Ricardo Moraes RICARDO MORAES Reuters Jair Bolsonaro: Brazil's far-right leader inauguration Supporters of Brazil's President Elect Jair Bolsonaro are cooled down with a water hose by firefighters, prior Bolsonaro's inauguration, in Brasilia, Brazil, Tuesday Jan. 1, 2019. (AP Photo/Silvia Izquierdo) Silvia Izquierdo AP Jair Bolsonaro: Brazil's far-right leader inauguration The presidential convoy, led by Brazil's President-elect Jair Bolsonaro (L) and his wife Michelle Bolsonaro in a Rolls Royce, heads to the National Congress for his swearing-in ceremony, in Brasilia on January 1, 2019. - Bolsonaro takes office with promises to radically change the path taken by Latin America's biggest country by trashing decades of centre-left policies. (Photo by Carl DE SOUZA / AFP)CARL DE SOUZA/AFP/Getty Images CARL DE SOUZA AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration epa07257163 Sympathizers of Brazilian President-elect, Jair Bolsonaro, walk past a giant figure of the future president before the beginning of the inauguration ceremony, in Brasilia, Brazil, 01 January 2019. A far-right president leads the biggest Latin America democracy for first time since the end of military rule (1964-1985). Bolsonaro defeated candidate Fernando Haddad in the runoff, held in October 2018, receiving 55 percent of the vote. EPA/Fernando Bizerra Jr Fernando Bizerra Jr EPA Jair Bolsonaro: Brazil's far-right leader inauguration Brazil's President-elect Jair Bolsonaro (L) gestures next to his wife Michelle Bolsonaro as the presidential convoy heads to the National Congress for his swearing-in ceremony, in Brasilia on January 1, 2019. - Bolsonaro takes office with promises to radically change the path taken by Latin America's biggest country by trashing decades of centre-left policies. (Photo by Carl DE SOUZA / AFP)CARL DE SOUZA/AFP/Getty Images CARL DE SOUZA AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Firefighters spray water at supporters of Brazilian President-elect Jair Bolsonaro to cool them down, while they gather to wait for his inauguration ceremony at "Tres Poderes" square in front of the Planalto Palace in Brasilia, on January 01, 2019. - Brazil entered a new chapter in its history on Tuesday, embracing a far-right president, Jair Bolsonaro, whose determination to break with decades of centrist rule has raised both hopes and fears. (Photo by EVARISTO SA / AFP)EVARISTO SA/AFP/Getty Images EVARISTO SA AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Supporters take pictures as Brazil's new President Jair Bolsonaro drives past before his swear-in ceremony, in Brasilia, Brazil January 1, 2019. REUTERS/Ricardo Moraes RICARDO MORAES Reuters Jair Bolsonaro: Brazil's far-right leader inauguration Brazil's new President Jair Bolsonaro and his wife, Michelle Bolsonaro, arrive at Brazil's National Congress, in Brasilia, Brazil January 1, 2019. REUTERS/Pilar Olivares PILAR OLIVARES Reuters Jair Bolsonaro: Brazil's far-right leader inauguration Supporters of Brazilian President-elect Jair Bolsonaro, gather at the "Tres Poderes" square in front of the Planalto Palace in Brasilia, before his inauguration ceremony on January 01, 2019. - Brazil entered a new chapter in its history on Tuesday, embracing a far-right president, Jair Bolsonaro, whose determination to break with decades of centrist rule has raised both hopes and fears. (Photo by EVARISTO SA / AFP)EVARISTO SA/AFP/Getty Images EVARISTO SA AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Supporters of Brazilian President-elect Jair Bolsonaro, gather to wait for his inauguration ceremony at "Tres Poderes" square in front of the Planalto Palace in Brasilia, on January 01, 2019. - Brazil entered a new chapter in its history on Tuesday, embracing a far-right president, Jair Bolsonaro, whose determination to break with decades of centrist rule has raised both hopes and fears. (Photo by EVARISTO SA / AFP)EVARISTO SA/AFP/Getty Images EVARISTO SA AFP/Getty Jair Bolsonaro: Brazil's far-right leader inauguration Jair Bolsonaro addresses Congress, during his swearing-in ceremony as Brazil's new president, in Brasilia on January 1, 2019. - Bolsonaro takes office with promises to radically change the path taken by Latin America's biggest country by trashing decades of centre-left policies. 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“Our message to Bolsonaro is that society will not accept these cuts of 30 per cent,” said Luis Antonio Pasquetti, head of the National University of Brasilia’s teacher union.

Mr Bolsonaro is currently on a trip to the US

“They are useful idiots, imbeciles, who are being used as the manoeuvring mass of a clever little minority who make up the nucleus of many federal universities in Brazil,” he said, when asked about the protesters.

The Brazilian leader was speaking from Dallas, Texas, where he is meeting private individuals according to The Dallas Voice.

He had been scheduled to attend a gala dinner in New York on 14 May but abruptly cancelled after the event attracted controversy.

The far-right leader is also experiencing a backlash in Brazil, where his poll ratings have fallen as he struggles with allegations of corruption and a weak economy.

Students light flares during a protest in Sao Paulo (AP)

Some 7,000 students and university professors gathered in Brasilia, the capital and marched to the country’s Congress building on Wednesday.

A few protesters carried signs. One read: “Education is not an expense, it is an investment.”

Another said: “Without investment there is no knowledge.”

In Rio de Janeiro a peaceful rally of thousands turned violent after unknown rioters shot fireworks at police and set fire to a bus.

Security forces responded by firing tear gas at the crowds.

Abraham Weintraub, Brazil’s education minister, told the country’s Congress that the cuts were necessary because of the previous government’s policies.

“The priority is preschool, elementary school and technical school,” he said.

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“A scientific, technical, number-based, efficient and managerial approach is vital to save this country from the economic stagnation of the last 20 years that we are living.”

Mr Bolsonaro appointed the education minister last month, despite the university professor’s history of promoting right-wing conspiracy theories.

The president dismissed the former education minister, Ricardo Velez Rodriguez, just three months into the appointee’s tenure.

Mr Rodriguez had been a controversial figure during his time in government, ordering textbooks be re-written to deny the country’s 1964 coup and subsequent 21-year military dictatorship.

He was also forced to apologise for demanding pupils across Brazil be read a letter containing several of Mr Bolsonaro’s campaign slogans before being filmed signing the national anthem.