evidence: Speaker Kevin McCarthy announced on Sept. 12 that he would direct the House to open a formal impeachment inquiry against President Joe Biden. [...] In his announcement of the impeachment inquiry, McCarthy made numerous claims about what the House Republicans have discovered about Biden’s activities that he said "warrant[s] further investigation by the House of Representatives." [...] McCarthy didn’t mention it in his remarks announcing the impeachment inquiry, but Rep. Scott Perry of Pennsylvania did at a press conference that day.