Classified documents at Pence's home, too, his lawyer says

Documents with classified markings were discovered in former Vice President Mike Pence 's Indiana residence last week, his lawyer says, the latest in a string of recoveries of papers meant to be treated with utmost sensitivity from the homes of current and former top U.S. officials.

"A small number of documents," taken into FBI custody last Thursday, "were inadvertently boxed and transported" to the former vice president's home at the end of the last administration, Pence's lawyer, Greg Jacob, wrote in a letter to the National Archives shared with The Associated Press.

He said that Pence had been "unaware of the existence of sensitive or classified documents at his personal residence" until a search last week and that he "understands the high importance of protecting sensitive and classified information" and stands ready to cooperate with "any appropriate inquiry."

The revelation came as the Department of Justice was already investigating the discovery of documents with classification markings in President Joe Biden's home in Delaware and his former Washington office, as well as former President Donald Trump's Florida estate. Democrat Biden has indicated he will seek reelection, Republican Trump is already a declared candidate, and Pence has been exploring a possible 2024 campaign that would put him in direct competition against Trump, his former boss.

The newest discovery thrusts Pence, who had previously insisted that he followed stringent protocols regarding classified documents, into the debate over the handling of secret materials by officials who have served in the highest ranks of government.

Trump is currently under criminal investigation after roughly 300 documents with classified markings, including at the top secret...