Twitter attached the same 'sensitive material' warning to the Trump campaign's anti-abortion post as violent and adult online content ahead of the president's March for Life rally on Friday.

'This media may contain sensitive material' appeared on the pro-life post from Team Trump on Thursday, as the president prepared to become the first commander-in-chief to attend the annual March for Life in Washington.

The anti-abortion video showed couples with newborn babies and a pregnant woman viewing an ultrasound.

'Life is the greatest miracle of all. We see it in the eyes of every new mother who cradles that wonderful, innocent, and glorious newborn child in her loving arms,' Trump says in the video.

Twitter attached the same 'sensitive content' warning (above) to the Trump Campaign's pro-life post as violent and sexual online content ahead of the president's March for Life rally on Friday

The video shows couples with newborn babies and a pregnant woman viewing an ultrasound. 'Life is the greatest miracle of all. We see it in the eyes of every new mother who cradles that wonderful, innocent, and glorious newborn child in her loving arms,' Trump says in the video

'Let us work together to build a culture that cherishes innocent life.'

According to Twitter's policy, sensitive media includes content that contains graphic violence, adult content, gratuitous gore or hateful imagery.

Twitter later claimed the warning had been put on the post 'in error' and had been removed.

But this was not before the social media platform was accused of 'censorship' by the Trump campaign.

Spokeswoman Kayleigh McEnany said this is 'a perfect example of the left stomping on any idea they don't like.'

An anti-abortion post from Florida Republican Matt Gaetz (above) was also tagged with the Twitter warning

In the post, Gaetz spoke of his 'sincere hope' that the U.S. law allowing women the right to choose to have an abortion will be overturned. The congressman posted the video on the 47th anniversary of the law on Wednesday

The 'error' came as an anti-abortion post from Florida Republican Matt Gaetz was also tagged with a Twitter warning saying: 'The following media includes potentially sensitive content'.

In the post, Gaetz spoke of his 'sincere hope' that the U.S. law allowing women the right to choose to have an abortion will be overturned.

The congressman posted the video on Wednesday - the 47th anniversary of the Supreme Court's landmark 1973 Roe v. Wade decision that recognized a woman's constitutional right to an abortion and legalized the procedure nationwide.

Gaetz blasted Twitter for attaching the warning to his post.

'First twitter 'accidentally' shadow-bans me along w @Jim_Jordan @RepMarkMeadows & @DebinNunes... Today they "erroneously" block my #ProLife video. Weird,' he wrote.

Donald Trump became the first president to attend the annual March for Life in Washington on Friday and used the event to unleash a fierce attack on his Democratic rivals in an election-year show of support for opponents of reproductive rights.

'Unborn children have never had a stronger defender in the White House,' the Republican president told thousands of cheering people at the rally, touting his anti-abortion policies and his appointments of conservatives to the federal judiciary including Supreme Court Justices Brett Kavanaugh and Neil Gorsuch.

Among his most loyal political supporters are evangelical Christians, who strongly oppose abortion rights. The event took on aspects of a campaign rally, with Trump lashing out at his political opponents and some in the crowd chanting 'Four More Years!'

'Sadly, the far left is actively working to erase our God-given rights, shut down faith-based charities, ban religious believers from the public square and silence Americans who believe in the sanctity of life,' Trump said.

'They are coming after me because I am fighting for you. And we are fighting for those who have no voice, and we will win.'

Demonstrators from around the country converged on a cool, overcast day in the U.S. capital for the event held annually around the anniversary of the abortion law change. Many high school and college students joined in the rally.

Historic move: Donald Trump is the first U.S. president ever to address the March for Life, using it as a rallying cry as Democrats put him on trial in the Senate

Election year: Donald Trump went to the March for Life in a year when his effort to court evangelical and religious voters is kicking into high gear

Annual show: The March for Life is a key date in the pro-life campaign's annual efforts to lobby politicians and see thousands march on the Capitol

Battle ground? The march went past the Supreme Court, whose justices are expected to take up some form of abortion case in coming years which would provide pro-life activists with a chance to achieve their goal over overturning Roe v Wade

MAGA country: Pro-life groups - many of them bussed in from across the nation - mixed anti-abortion messages with Trump political

Reception: Donald Trump basked in applause as he addressed the March for Life close to the White House, just before his trial began again at the other end of the National Mall

Show of strength: Anti-abortion activists carry a banner during the the 47th annual March for Life on the National Mall

Trump RV: One vehicle parked near the March for Life left little doubt how the owner plans to vote in 2020

Trump, seeking re-election on Nov. 3, addressed the event in the midst of his impeachment trial in the U.S. Senate on charges passed by the Democratic-led House of Representatives. While not mentioning impeachment, he assailed congressional Democrats on abortion policy. Trump drew loud applause from the crowd.

'Democrats have embraced the most radical and extreme positions taken and seen in this country for years and decades and you could even say for centuries. Nearly every top Democrat in Congress now supports taxpayer-funded abortion all the way up until the moment of birth,' Trump said, eliciting boos and jeers from the crowd.

Trump, who years earlier had supported abortion rights, cast himself as a committed abortion opponent on religious grounds.

'We know that every human soul is divine and ever human life, born and unborn, is made in the holy image of almighty God,' Trump said.

Trump vowed during the 2016 presidential campaign to appoint justices who would overturn Roe v. Wade.

Abortion remains one of the most divisive issues in the United States. About 58% of U.S. adults say abortion should be legal in most or all cases, according to a Reuters/Ipsos poll last year.

Past U.S. presidents have opted to stay away from the march, though Republicans Ronald Reagan and George W. Bush both previously delivered remarks to the rally remotely.

The Supreme Court on March 4 will hear arguments in a major case concerning the legality of abortion clinic regulations in Louisiana that could lead to new curbs on access to the procedure. The case will test the willingness of the court, which has a 5-4 conservative majority that includes Trump's two appointees, to uphold Republican-backed abortion restrictions being pursued in numerous conservative states.

Some at the rally held signs with slogans including 'Baby Holocaust,' 'Most Pro-Life President Ever,' 'Stop Killing Babies' and 'I Am The Pro-Life Generation.' Many were from religious groups and conservative nonprofit organizations.

Near the Capitol: One group brought a Vatican flag to the March for Life. At the Vatican Mike Pence met Pope Francis

On their way: Marches on Constitution Avenue, on the north side of the National Mall

On their way to court: Marchers near the Supreme Court - two of whose justices, Neil Gorsuch and Brett Kavanaugh, Trump praised as he spoke to the March for Life. Neither has been involved in a significant abortion ruling since their confirmation

47th iteration: The March for Life began in 1974 after the US Supreme Court's Roe v. Wade decision

Religious message: Donald Trump is hoping to maintain his strong support among evangelicals, and is also courting Catholic voters who are heavily represented in the key swing states of Pennsylvania, Wisconsin and Michigan which won him the presidency

Not just evangelicals: The March for Life features a large number of Catholics taking part including some with a statue of Our Lady of Fatima, and others from St Martin of Tours in Gaithersburg, Maryland, just outside Washiungton D.C.

Counter-protest: A small number of pro-choice activists launched their own demonstration against the March for Life

Among them was Anne Fitzgerald, 44, who said that at age 21 she gave up her daughter for adoption so she could finish college. She now runs Days of Tears, a Virginia nonprofit that advocates against abortion, and said she was marching to help women recognize 'that in the moment of a decision between raising or aborting a child, adoption is a viable option.'

Fitzgerald said she was at first skeptical of Trump's stance on abortion, but is proud he turned out to be 'strong ally'.

Outside the Supreme Court, anti-abortion demonstrators in the march were met by abortion rights activists, some of whom held signs saying 'Keep abortion safe and legal' and 'Safe abortion is a human right.' There were also some activists backing Trump's removal from office.

Emily Goodman, 33, who stood with several fellow supporters of abortion rights during the march, said the event 'reeks of a form of religious fundamentalism.'

'What the pro-life advocates seem to be focused on is bussing in young people with signs to declare that their side of the argument is right and no other opinion matters,' said Goodman, who volunteers for a Washington-based nonprofit organization. 'I wish there was a conversation today, involving two sides, focused on a woman's ability to both hold her view on abortion yet not impose that view onto another.'

Trump delivered remarks by video at the 2019 march. Vice President Mike Pence attended the event in person last year.