Democratic presidential front-runner Joe Biden will say on Tuesday that he is in favor of impeachment of Donald Trump if the Republican president does not comply with congressional requests for information on Ukraine and other matters, a spokesman said.
Biden, the former vice president, has become swept up in a political furor over reports that Trump pressured the Ukrainian president to investigate Biden and his son, an issue that has intensified Democratic calls for Trump's impeachment.
Congressional Democrats have sought information related to Trump's July phone call with Ukrainian President Volodymyr Zelenskiy. Trump has acknowledged he discussed Biden in the call, but denies he withheld nearly $400 million in U.S. aid to Ukraine as leverage to get Zelenskiy to launch a probe that would damage Biden.