As new reports allege that former President Bidens handlers secretly knew that he was declining physically and mentally before his 2024 campaign withdrawal, former White House press secretary Karine Jean-Pierre consistently denied Bidens frailty to the media.During a press briefing just days after Biden withdrew from his re-election campaign in July 2024, Jean-Pierre sparred with Fox News reporter Peter Doocy, refuting his suggestion that party figures and many in the media covered up the president's cognitive decline until it wasnt possible anymore."First of all, there's been no cover-up," Jean-Pierre told Doocy, adding, "I want to be very clear about that."CONSERVATIVES REACT TO LEAKED BIDEN AUDIO ON SOCIAL MEDIA: 'THIS IS PAINFUL'"I know that that is a narrative that you love to " the White House official said in response to the Fox News reporter, who had asked, "So, who ordered White House officials to cover up a declining president?"Jean-Pierres denial of a cover-up has come under more scrutiny following recent bombshell reports alleging that Biden insiders acknowledged the former president's decline privately while strategizing on how to deny it to the media.Axios reporter Alex Thompson told News Nation Now that while researching for his new book "Original Sin" co-authored with CNN anchor Jake Tapper a Biden insider admitted "yes, we deserve blame for X, Y, Z. We were hiding [Biden]."FORMER BIDEN MEDICAL ADVISOR SAYS HE 'PROBABLY' HAD CANCER AT BEGINNING OF PRESIDENCYThompson added that the same insider told him the media were to blame for how much they could get away with in denying Bidens decline, stating, "Listen, the media deserves some blame too. Like we were sort of amazed at some of the stuff we were able to spin."The book also claimed Bidens inner circle kept many White House officials in the dark about the former presidents mental and physical state. Former Biden staffers alleged that presidential insiders urged people like former White House deputy press secretary Andrew Bates to deny Bidens health issues when the media asked about them."Some of Batess colleagues believed that Bidens inner circle took advantage of his loyalty and told him to deny things they knew were true," Tapper and Thompson wrote, elsewhere adding, "[Bates], along with most of the press team, rarely met with the president and didnt have firsthand knowledge of the presidents wherewithal. They relied on senior staff for answers."CLICK HERE FOR MORE COVERAGE OF MEDIA AND CULTURE"Original Sin" also reported that the Biden campaign and White House had a "modus operandi" for "attacking any journalist who covered any questions about the presidents age" with the goal to "shame journalists and create a disincentive structure for those curious about the presidents condition."Concerns over what was known about Bidens health decline while he was president have only mounted since he left office, as he was recently diagnosed with advanced prostate cancer.The U.S. Department of Justice also recently released the audio recording of his 2024 interview with Special Counsel Robert Hur, providing evidence of Bidens cognitive issues that were present months before he left the presidential race.CLICK HERE TO GET THE FOX NEWS APPJean-Pierre and representatives for Biden did not immediately reply to Fox News Digital's request for comment.