Thomas Sobocinski, an F.B.I. agent, told House investigators that the prosecutor overseeing the investigation into the president’s son never said he did not have full authority to pursue charges.
How a widow’s legal fight against the Wildenstein family of France has threatened their storied collection — and revealed the underbelly of the global art market.
Mr. Biden, 53, has acknowledged a decades-long addiction to alcohol and crack cocaine. His foreign business dealings have led to questions about President Biden’s influence.