Frank Amedia, a pastor with Touch Heaven Ministries in Ohio has reportedly been brought in by Trump to arrange meetings with conservative Christian leaders to keep them on board.
Mr Amedia’s church’s website has reportedly previously said he was “an apostle, prophet, pastor, evangelist, teacher, and minister with sound biblical doctrine, gifts of knowledge, healing, and discernment”.
It adds: “For over two decades, his clarity of vision, prophetic insight, and revelations of the mysteries of the Kingdom of God in the scriptures have been an enormous blessing to a worldwide audience.”
The most startling claim to have previously been made by Mr Amedia was on Miami pastor Guillermo Maldonado’s TBN programme in 2012.
During the broadcast, Mr Amedia claimed a year earlier he had used the power of God to stopwaves from the 2011 Japanese tsunami from hitting an Hawaiian island.
It emerged he allegedly did it over fears for his daughter who was on the island at the time.
He said in the broadcast: “I stood at the edge of my bed and I said, ‘In the name of Jesus, I declare that tsunami to stop now.’
“I specifically said, ‘I declare those waters to recede,’ and I said, ‘Father, that is my child, I am your child, I’m coming to you now and asking you to preserve her’.
“Apostle, it was seen by 400 people on a cliff. It was on YouTube, it was actually on the news that that tsunami stopped 200 feet off of shore.
“Even after having sucked the waters in, it churned and it went on and did devastation in the next island.”
Before this claim was made, Mr Amedia was involved in controversial legal proceedings.
Local reports in the US say he was granted immunity in 2001 to testify about how he helped try to bribe a prosecutor to drop a case against a car-dealer friend.
The pastor faced no charges, but admitted to helping to arrange a $250,000 payment through a businessman.
At the time, he blamed his actions on family members being threatened by gangsters over the incident.
Trump is reportedly keen to gain more support among the right-wing evangelical Christian vote.
It is after he split opinion among evangelical leaders.
Supporters of Trump include Robert Jeffress, pastor of First Baptist Church, Dallas.
However, Russell Moore, head of the Southern Baptist Convention’s Ethics and Religious Liberty Commission, has come out against the policies of the tycoon.