Former US president Donald Trump has flown into New York City on his private plane to face historic charges stemming from a probe into hush money paid to a porn star, while his lawyers argued against letting cameras in the courtroom.

With New York taking security precautions and the mayor telling potential rabble-rousers to behave, Trump is due to surrender at the Manhattan District Attorney's Office on Tuesday and will likely be fingerprinted before appearing before a judge for an arraignment where he will plead not guilty.

Trump, a 76-year-old Republican seeking to regain the presidency in 2024, is the first former US president to face criminal charges.

Yahoo News late on Monday said Trump would face 34 felony counts for falsification of business records, citing a source briefed on the arraignment.

His plane - painted in red, white and blue with "TRUMP" in big letters on the side - arrived at LaGuardia Airport on Monday after a three-hour flight from West Palm Beach near his Florida home.

In a blue suit and red tie, Trump walked alone from the plane for a drive in a motorcade to Trump Tower in Manhattan.

After arriving, he waved to people behind security barricades and walked into Trump Tower while making no public comments.

Justice Juan Merchan will decide whether to allow videography, photography and radio coverage of the arraignment.

Trump's team oppose it because it will "exacerbate an already almost circus-like atmosphere around this case". Manhattan District Attorney Alvin Bragg's office noted Merchan allowed some photos before last year's criminal trial in which Trump's real estate company was convicted of tax fraud.

The grand jury that indicted Trump heard evidence for months about a $US130,000 ($A191,000) payment to adult film actor Stormy Daniels in the waning days of the 2016 presidential campaign.

Daniels has said she was paid to keep silent about a sexual encounter she had with Trump at a Lake Tahoe hotel in 2006. Trump denies having had any such relationship with her.

The specific charges by the grand jury convened by Bragg, a Democrat, have yet to be disclosed. Trump says he is innocent. He and his allies have portrayed the charges as politically motivated.

A motorcade took Trump at midday from his Mar-a-Lago estate to the airport in nearby West Palm Beach.

"WITCH HUNT, as our once great Country is going to HELL!" Trump posted on social media just before he left Florida.

Trump said on social media he would head to the courthouse on Tuesday morning.

Trump's campaign raised $US7 million in the three days after word of the indictment emerged last Thursday, senior adviser Jason Miller said. The campaign issued its latest fundraising email on Monday, taking aim at the media's reporting on his indictment.

The arraignment is planned for 2.15pm on Tuesday (0415 on Wednesday). Bragg will give a news conference afterwards. Trump will return to Florida and deliver remarks from Mar-a-Lago on Tuesday night.

The New York case is one of several probes Trump faces.

New York police at the weekend began erecting barricades near Trump Tower and the Manhattan Criminal Court building. Demonstrations were expected at those sites on Tuesday.

Mayor Eric Adams, a Democrat, said there was no known specific security threat but warned "some rabble-rousers thinking about coming to our city".

"Our message is clear and simple: control yourselves. New York City is our home, not a playground for your misplaced anger," Adams told reporters.

He specifically mentioned Republican congresswoman Marjorie Taylor Greene, who has announced plans to protest.

"Be on your best behaviour," the mayor said.

Asked whether he was worried about unrest around Trump's arraignment, President Joe Biden, touring a factory in Minnesota, said, "No, I have faith in the New York Police Department."

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Confidence levels among mortgage holders have sunk even lower ahead of the April cash rate decision.

Confidence among those paying off a mortgage fell 2.1 points to 70.5 points, putting the cohort 7.2 points below renters and those that own a home outright in ANZ and Roy Morgan's weekly index.

Overall, consumers have regained some confidence ahead of the Reserve Bank's lineball cash rate decision that has more economists leaning towards another hike but a pause firmly in contention.

The fastest round of policy tightening in decades has already added hundreds of dollars to mortgage repayments and another increase will ratchet up the pressure further.

Despite the modest 1.6 point uptick in overall consumer confidence to 78.2 points, ANZ and Roy Morgan's weekly index remains stubbornly in depressed territory and has returned a below-80 point result for the fifth week in a row.

Three of the five confidence subindices increased, with 'current economic conditions' up 4.6 points, 'future economic conditions' up three points and 'future financial conditions' lifting 3.1 points.

Despite the improvement, ANZ senior economist Adelaide Timbrell said confidence in financial conditions, particularly current financial conditions, was now trending lower than it was during the start of the COVID outbreak.

The outlook for mortgage holders is bleak but higher interest rates are also making it harder for first time home owners to buy without falling into mortgage stress.

New Canstar analysis shows the average would-be solo home owner would need to earn $165,695 a year to buy a home without falling into mortgage stress.

The average annual before-tax income is $94,000.

The research explored how much buyers needed to earn to afford a house with a 20 per cent deposit but without contributing 30 per cent or more of their after-tax income toward repayments, which is how mortgage stress is defined.

With property prices already tracking back up despite the possibility of further rate rises, Canstar money expert Effie Zahos said home ownership would be even further out of reach for single-income earners.

"Even if there is a pause in April, it is expected the cash rate will be hiked up at least one more time during this cycle, meaning mortgage stress isn't going away anytime soon," she said.

© AAP 2023

Confidence among mortgage holders has continued to sink, but homeowners have been handed a temporary reprieve from further repayment rises with the Reserve Bank keeping interest rates on hold.

Consumer confidence for the cohort fell 2.1 points to 70.5 points, putting mortgage holders 7.2 points below renters and those who own a home outright in ANZ and Roy Morgan's weekly index.

The fastest round of policy tightening in decades has already added hundreds of dollars to mortgage repayments.

Overall, consumers regained some confidence ahead of the RBA's finely balanced decision on Tuesday to keep the cash rate unchanged at 3.6 per cent.

Economists were divided in the lead-up to the central bank's rates call, with another quarter percentage point hike firmly on the table.

Despite the pause, the RBA warned it might need to hike again if incoming data suggests more needed to be done to tame inflation.

Overall, there was a modest 1.6-point uptick in consumer confidence, but the monthly index remains stubbornly in depressed territory and has returned a below-80 point result for the fifth week in a row.

Three of the five confidence subindices rose, including "current economic conditions" lifting 4.6 points, "future economic conditions" lifting three points and "future financial conditions" lifting 3.1 points.

Despite the overall index improvement, ANZ senior economist Adelaide Timbrell said confidence in financial conditions, particularly current financial conditions, was trending lower than it had been during the start of the COVID-19 outbreak.

The outlook for mortgage holders is bleak but higher interest rates are also making it harder for first-time purchasers to buy without falling into mortgage stress.

New Canstar analysis shows the average would-be solo home owner needs to earn $165,695 a year to buy a home without falling into mortgage stress.

The average annual earnings for a full-time worker are $94,000.

The research explored how much buyers needed to earn to afford a house with a 20 per cent deposit but without contributing 30 per cent or more of their after-tax income towards repayments, which is how mortgage stress is defined.

Canstar money expert Effie Zahos said the return to higher home prices, combined with the possibility of more interest rate hikes, could push home ownership even further out of reach for single-income earners.

© AAP 2023

A plane carrying former US President Donald Trump has taken off from a Florida airport bound for New York City as he prepares to face charges stemming from an investigation into hush money paid to a porn star before the 2016 election.

With New York taking security precautions and the mayor insisting any would-be rabble-rousers behave, Trump was due to surrender at the Manhattan District Attorney's Office on Tuesday and will likely be fingerprinted prior to appearing before a judge for an arraignment where he will plead not guilty.

Trump, a Republican seeking to regain the presidency in 2024, is the first former US president to face criminal charges. Trump has hired Todd Blanche, a prominent white-collar criminal defence lawyer and a former federal prosecutor, to lead his defence, said two sources familiar with the matter.

The specific charges in the grand jury indictment have yet to be disclosed. Trump has said he is innocent, and he and his allies have portrayed the charges as politically motivated.

A motorcade of several vehicles transported Trump from his Mar-a-Lago estate in Palm Beach to the airport in nearby West Palm Beach on Monday. Trump and members of his entourage climbed a set of stairs and entered his plane, painted in red, white and blue with TRUMP in big letters on the side and an image of the American flag on the tail.

Earlier Trump said on social media he would go to Trump Tower in Manhattan after arriving in New York, then would head to the courthouse on Tuesday morning.

Before his plane departed, small groups of Trump fans waited to show their support at the airport and on his route to get there.

"Our country needs him," said Cindy Falco, 65, of Boynton Beach, Florida. "He's pro-God, pro-family and pro-country."

Falco predicted exoneration, saying: "Nothing is going to stick to him."

Trump's campaign issued a fundraising email taking aim at the media's reporting on his indictment.

Remarks attributed to Trump in the email stated: "Our country has fallen. But I'm not giving up on America. We can and we will save our nation in 2024."

His campaign said Trump raised more than $4 million in the 24 hours following the news of his indictment.

A court official said the arraignment was planned for 2.15 pm local time on Tuesday. Trump then will return to Florida and deliver remarks from Mar-a-Lago on Tuesday evening, his office said.

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