Trump, who was extremely happy over the Federal Bureau of Investigation's raid in his attorney Michael Cohen's office and called it a "disgraceful situation", was also contemplating a response to the alleged chemical attack in Syria on Saturday, April 7, which killed several dozen people besides injuring many others.
The chemical attack: On Sunday, the Syrian White Helmets rescue group wrote on Twitter that a helicopter had dropped a barrel bomb filled with chemicals on the rebel-held city of Douma late on Saturday, killing at least 40 people and injuring hundreds of others.
Trump had on Monday warned of a quick, forceful response once responsibility for the Syria attack was established.
The guided missile destroyer is armed with Tomahawk cruise missiles, the weapon of choice in a US attack one year ago on an airfield in Syria following an alleged sarin gas attack on civilians.
Russian Federation s United Nations ambassador Vassily Nebenzia accused Haley of seeking a vote to provide cover for a Western military strike on Assad that now seems all the more likely.
"Meetings are ongoing, important decisions are being weighed even as we speak", she said.
Earlier in the day, Trump posted a fiery tweet in which he warned Russian Federation, one of Syria's key supporters in the war against foreign-backed militancy, that it should get prepared to "shoot down" missiles that the USA military would soon rain down over Syrian targets.
Vice President Mike Pence will travel in his place.More news: Uber launches its own car-sharing service, Uber Rent
More news: Bayern Munich announce plans to play friendlies in United States
More news: UK Deutsche Bank CEO sacked after lengthy boardroom battle
Syria finished destroying its arsenal of chemical weapons in 2014, under supervision from the OPCW.
In the meantime, the worldwide chemical weapons watchdog, the Organization for the Prohibition of Chemical Weapons, said it will send a fact-finding mission to Douma to investigate the reported attack.
Reports on Tuesday said the Syrian army had put all military positions on alert, including airports and all bases, for 72 hours.
The president also said that "nothing's off the table".
"I think his threats are to be feared, and we should take them seriously".
That attack prompted the USA to launch several dozen Tomahawk cruise missiles at a Syrian air base.
Pierce earlier accused Russian Federation of abusing "the power of veto to protect Syria".
France and the United Kingdom are consulting with the Trump administration on a possible joint military response.
US President Donald Trump has cancelled his first official trip to Latin America to focus on the issue of a suspected chemical attack in Syria.