Biden Lays Out His Objections to Impeachment Subpoena Demand

IOWA CITY, Iowa—Former Vice President Joe Biden pushed back against suggestions he should testify before President Trump’s impeachment trial in the Senate, saying the process “is about Trump’s conduct, not mine.”

Mr. Biden, in a series of tweets on Saturday, explained why he planned to refuse to comply with a subpoena if Republicans in the Senate seek his testimony during the upcoming impeachment trial. He said during his lengthy career in the Senate and as vice president that he had “always complied with a lawful order” and “cooperated with legitimate congressional oversight requests.”