The White House on Tuesday brushed aside questions about whether the involvement of Vice President Joe Biden's son in a Ukrainian natural gas company raised ethical issues at a time when the administration is promoting energy diversity in the country.
R. Hunter Biden, a lawyer and a partner in an investment firm, was recently named to the board of directors of Burisma Holdings, a private company that has drilled for natural gas in Ukraine since 2002.
In a statement on Burisma's website, Hunter Biden said he would help the company with "transparency, corporate governance and responsibility, international expansion" and other issues.