Hunter Biden

Federal investigators in Manhattan executed a search warrant Wednesday at Rudy Giuliani's apartment as part of a probe into the former New York City mayor's activities involving Ukraine, his attorney told NPR.

Attorney General William Barr said Monday he sees no reason to appoint a special counsel to lead the ongoing federal investigation into Hunter Biden or to further probe President Trump's claims of widespread fraud in the 2020 election.

Joe Biden's son Hunter said he learned that "the U.S. Attorney's Office in Delaware advised my legal counsel ... that they are investigating my tax affairs."

The acting director of national intelligence is meeting the House and Senate intelligence committees on Thursday as Washington roils over Ukraine and an ongoing impeachment inquiry.