NEWYou can now listen to Fox News articles! Kevin Warsh heads into his Senate confirmation hearing Tuesday morning vying to be the richest-ever chair of the Federal Reserve amid mounting questions over his sizable financial portfolio.Newly released disclosures reveal the extent of Warsh’s wealth but leave key portions of his holdings unclear, which could complicate his path toward confirmation since the position he is up for wields enormous influence over financial markets. The disclosures are likely to draw scrutiny from lawmakers due to potential conflicts of interest and concerns over transparency, both central focuses of the confirmation process — particularly at…