An Election-year investigation by Senate Republicans into corruption allegations against Joseph R. Biden Jr. and his son, Hunter, involving Ukraine found no evidence of improper influence or wrongdoing by the former vice president, closing out an inquiry its leaders had hoped would tarnish the Democratic presidential nominee.
The investigation found that Hunter Biden had “cashed in” on his father’s name to close lucrative business deals around the world. It also concluded that his work for Burisma Holdings, a Ukrainian energy company then mired in a corruption scandal, while the former vice president was directing American policy toward Kyiv had given the appearance of a conflict of interest and alarmed some State Department officials.
But an 87-page report summing up the findings, released jointly on Wednesday by the Senate Homeland Security and Finance Committees, contained no evidence that the elder Mr. Biden improperly manipulated American policy toward Ukraine or committed any other misdeed. In fact, investigators heard witness testimony that rebutted those charges.
The homeland security panel’s Republican chairman, Senator Ron Johnson of Wisconsin, had made little secret of his political ambitions for his report, boasting for weeks that his findings would demonstrate Mr. Biden’s “unfitness for office.” Instead, the result delivered on Wednesday appeared to be little more than a rehashing six weeks before Election Day of unproven allegations that echo an active Russian disinformation campaign and have been pushed by Mr. Trump.