You mention this as if the national debt has been reduced under the tenure of other recent administrations.
Actually, no. I merely mentioned it without reference to any other presidents. But, if you insist here are the numbers in the change in Debt to GDP ratio according to the CBO:
John F. Kennedy 1961–1963 -8.3%
Lyndon B. Johnson 1963–1969 -8.3%
Richard Nixon 1969–1974 -3.0%
Gerald Ford 1974–1977 +0.2%
Jimmy Carter 1977–1981 -3.3%
Ronald Reagan 1981–1989 +20.6%
George H.W. Bush 1989–1993 +13.0%
Bill Clinton 1993–2001 -9.7%
George W. Bush 2001–2009 +27.8%
Barack Obama 2009–2017 +18.5%
Donald Trump 2017–2021 +39%
Joe Biden 2021–present +24.75% (as of September 2024)