[4] A February 2024 Ipsos poll finding that Joe Biden's age and health were major or moderate concerns for 86% of voters also found that 59% similarly thought Trump was too old to hold the office.[20] During the course of the 2024 primary campaign, Trump's gaffes included confusing Nikki Haley for Nancy Pelosi, claiming he is running against Barack Obama, and fearing the nation may enter World War II.[30] In 2017, psychologist John Gartner collected more than 41,000 signatures of mental health professionals on a petition, directed to the national opposition leader, Democratic Senator Chuck Schumer.[33][34] An academic consensus across multiple studies has characterized Trump as having "very high extraversion, very low agreeableness, conscientiousness, and emotional stability, and sky-high narcissism".[35] As early as November 2015, Vanity Fair reported the opinion of a number of mental health experts that Trump had narcissistic personality disorder."[41] In April 2017, forensic psychiatrist Bandy X. Lee hosted a meeting at Yale University medical school regarding the ethics of discussing Trump's mental health.They argued that the president's issues affected the mental health of the United States population,[44] and that he placed the country at grave risk of war because of his pathological traits.[9] In 2017, journalist Bill Moyers interviewed psychiatrist Robert Jay Lifton and said that Trump "makes increasingly bizarre statements that are contradicted by irrefutable evidence to the contrary".[35] Experts for the science publication STAT who analyzed changes in Trump's speeches between 2015 and 2024 noted shorter sentences, more tangents, more repetition and more confusion of words and phrases.[63] Trump has also pushed back on claims he couldn't remember the name of a fallen soldier while talking to the widow by stating he has "one of the great memories of all time".[65][66] Trump used the phrase "Person, woman, man, camera, TV" several times during a July 2020 Fox News interview with Marc Siegel, a professor of medicine at New York University,[67][68] while praising about his performance on and describing part of the 2018 MoCA test.[72] A follow-up medical report by Bornstein claimed Trump's blood pressure, liver and thyroid functions to be in normal ranges, and that he takes a statin.[73][74][75] In January 2018, Trump was examined by White House physician Ronny Jackson, who stated that he was in excellent health, although his weight and cholesterol level were higher than recommended,[76] and that his cardiac assessment revealed no medical issues.[85] On September 26, 2020, an event was held in the White House Rose Garden announcing Amy Coney Barrett's nomination to the Supreme Court following the death of Ruth Bader Ginsburg.[88] The governor opposed the rally, arguing: that the decision to "bring thousands of people together in a tight space in the midst of a global pandemic caused by an airborne virus is flat out wrong."[89] After Trump's diagnosis was made public, Pennsylvania health officials advised attendees to participate in the state's contact tracing program.[102] In 2021, it was revealed that his condition had been far more serious; he had dangerously low blood oxygen levels, a high fever, and lung infiltrates, indicating a severe case.[103] The shift in Trump's speeches by 2024 towards shorter sentences, more tangents, more repetition, more all-or-nothing thinking and more confusion of words and phrases could indicate cognitive decline.Cline noted that a similar rule would have made both Trump and Biden ineligible to run in 2024 and argues that the evidence supporting a mandatory retirement age is strong.It cited that experts considered this increase in tangential speech and behavioral disinhibition potential results of advancing age and cognitive decline.[110] Trump was shot at[111] by Thomas Matthew Crooks, a 20-year-old man from Bethel Park, Pennsylvania,[112][113] who fired eight rounds with an AR-15–style rifle from the roof of a building located approximately 400 feet (120 meters) from the stage.