Sept. 15 (UPI) -- White House economic adviser Stephen Miran cleared a key hurdle on Monday to joining the Federal Reserve Board despite concerns about his independence. The Senate Banking Committee voted to advance the nomination of Miran to serve on the Fed's seven-member board of governors, setting the stage for what is expected to be his confirmation by the full Senate Monday evening to fill out the term of Adriana Kugler, who abruptly resigned. Miran, who is currently chair of the White