Federal Reserve Governor Lisa Cook's attorney is challenging the impartiality of a White House committee investigating mortgage fraud allegations against her, raising concerns about the fairness of President Donald Trump's latest effort to remove her from the central bank.In an Oct. 13 letter reviewed by Reuters, attorney Abbe Lowell questioned the inclusion of National Economic Council Director Kevin Hassett on the three-member panel, saying Hassett had previously pressured Cook to take leave and suggested Trump had "cause" to fire her."A hearing with demonstrably biased members, unspecified...