Washington (CNN) The author of a new book focused on the President's daughter Ivanka Trump and son-in-law Jared Kushner's influence in the Trump administration warns of the danger she believes the two White House advisers present.

"I think that you can't underestimate the dangers of these two," Vicky Ward, the author of "Kushner, Inc.," told CNN's John Berman Wednesday during an interview on "New Day." "And I think that actually (President Donald Trump) knows that."

Asked why she believes they're dangerous, Ward pointed to Kushner's heavy involvement in the administration's foreign policy, including the efforts to broker a peace agreement in the Middle East.

"Instead of solving Middle East peace, Jared nearly put us into a war in the region," she said, as she described how he essentially took over the State Department from then-Secretary of State Rex Tillerson.

Ward also raised Kushner's take over many international relationships when Tillerson was secretary of state, which she details in her book , and Kushner's relationship with the Saudi Crown Prince Mohammed Bin Salman, also known as MBS.

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