The former intelligence officer also said: "Two of the named Russian sources have not been seen or heard of since."
On the last day of his presidency, Trump declassified Steele's evidence and provided a copy of his testimony to a journalist, Steele said in his statement.
"The publication of this document did serious damage to the U.S. government's Russian operations and their ability to recruit new Russian sources," Steele said.
Steele also said in his witness statement that he believed Trump was "motivated by a personal vendetta against me and Orbis and a desire for revenge".
In his witness statement, Trump said Ivanka was "completely irrelevant to this claim and any mention of her only serves to distract this court from (Orbis') and Mr Steele's reckless behavior".
Persons:
Donald Trump, Shannon Stapleton, Steele, Trump, declassification, Donald Trump's, Christopher Steele, president's, Robert Mueller's, Mueller, Ivanka, Mr Steele, Sam Tobin, Emelia Sithole
Organizations:
U.S, Republican, REUTERS, London's, Trump, Orbis Business Intelligence, FBI, Thomson
Locations:
West Palm Beach , Florida, U.S, Russia, British