最新！特朗普下令调查涉嫌掩盖“拜登认知能力”事件，称其为“美国史上最危险丑闻、最令人担忧的丑闻之一”

Group 1 - The core point of the news is that former President Trump has ordered an investigation into whether Biden's aides concealed his cognitive decline, including the use of an automatic signature pen for official documents [1] - Trump claims this investigation will focus on whether Biden's aides attempted to "deceive the public" regarding Biden's "serious cognitive decline" [1] - Trump described the situation as one of the most dangerous and concerning scandals in American history [1] Group 2 - In a recent speech, Biden criticized the new government for causing significant damage and division in the country within a short period [2] - Biden emphasized the importance of protecting Social Security, which is expected to be a key issue in the upcoming midterm elections [2] - White House Press Secretary expressed surprise at Biden's late-night speech, indicating it was unexpected for him to speak at that hour [2]