Trump heads into unknown as NY arraignment looms

City erects barricades as it is on high alert for former US president's arrival in court

Donald Trump was expected to fly to New York on Monday for his historic arraignment on criminal charges, taking the United States and the office of the presidency into uncharted and potentially volatile territory.

The Republican businessman-turned-politician was indicted last week by a grand jury on a series of counts related to a hush-money payment made to an adult film star during the 2016 election campaign.

His aides said Trump will decamp from his Mar-a-Lago home in Florida and fly on Monday to New York, his former base of operations.