Washington: Republican representative and former White House physician Ronnie Jackson has criticized US Vice President Joe Biden, claiming that his deteriorating mental condition is a threat to the entire country. Biden serving as our commander in chief is terrible for our country, Jackson tweeted on Saturday. He's lost half the time, and every day he pushes China and Russia closer to full-scale conflict. His declining mental capacity will result in murders! In the past, Jackson has criticized the current US administration for failing to be transparent about Joe Biden's mental health. Jackson served as the White House physician to presidents under Barack Obama and Donald Trump until 2018. Also Read: US Treasury Secretary promises to strengthen the Ukrainian economy Based on a review of his medical history and a "detailed physical examination," the White House released a summary of Biden's health earlier this month, concluding that the president was a "healthy, agile, 80-year-old male" who was able . to perform his duties. Jackson responded to the President's health report by calling the physical a "joke" and a "cover up". He said the current president's "ability to think and reason is gone" and should not be in office, adding that Biden, unlike his predecessor Donald Trump, had not taken a cognitive test. Also Read: Serbia-Kosovo "normalisation" proposal revealed by the EU A recent Harvard CAPS-Harris poll conducted earlier this month found that 67% of Americans believed Biden appeared too old to be the country's president, and 57% were concerned about his mental fitness. was worried. Also Read: Moscow charges the US with planning a provocative use of "toxic chemicals" in Ukraine The latest of the president's repeated gaffes, in which he said that "more than half of the people in my administration are women," has only fueled speculation about his cognitive abilities.