India, Feb. 15 -- A report has intensified scrutiny around Kristi Noem and adviser Corey Lewandowski, alleging the pair travelled together aboard a government-contracted jet featuring a private rear cabin. The claims add to ongoing speculation about their relationship, which both deny, and concerns about optics and management within the Department of Homeland Security (DHS).

According to The Wall Street Journal, Donald Trump and senior advisers have been made "uncomfortable" by the alleged relationship, with officials saying the issue has been raised repeatedly.

People familiar with the matter told the Journal that Noem and Lewandowski have travelled across the country on a Boeing 737 MAX jet equipped with a private cabin. Staff reporte...