A Democratic senator is calling for a review of Ivanka Trump's security clearance, raising concerns that she has yet to completely divest herself from her business empire.

Sen. Ben Cardin, D-Md., a ranking member of the Senate Foreign Relations Committee, is calling for the full review of Trump's security clearance over to her involvement in the World Bank's Women Finance Entrepreneurship Financing Initiative, or WeFi, which launched last week.

Cardin penned a letter to Treasury Secretary Steven Mnuchin where he cited concerns over Trump's relationship to the fund, noting that the first daughter has yet to separate herself from "her wide-ranging financial interests."

"As a White House employee, she is barred from using her public office for private gain, Therefore, I believe it would not be appropriate for her to serve as a public advocate for the fund," Cardin wrote. "As long as Ms. Trump continues to benefit financially from a brand that bears her name, her involvement with WeFi could creates the potential for conflicts of interest that could stand in the way of achieving the fund's goals.

President Trump committed $50 million to the initiative led by his daughter and geared towards female business owners.

"Mr. Trump's involvement with the #WeFi initiative could motivate foreign governments to support the fund in order to curry favor w/ @POTUS," Cardin tweeted Tuesday.