WASHINGTON — As questions mount about recent classified records discoveries, the new Republican majority in the U.S. House is readying a fusillade of investigations into President Joe Biden, his family and his administration, upholding a key promise of the midterm election campaigns following Democratic-led inquiries of former President Donald Trump. The GOP probes will be spread among several existing House committees as well as newly created panels, including one focused on the Justice Department and intelligence agencies that conservatives accuse of targeting them. In the runup to the 2024 presidential race, Biden and his allies will be forced to counter...