"List of United States presidential assassination attempts and plots"

https://en.wikipedia.org/wiki/List_of_United_States_presidential_assassination_attempts_and_plots

1776+ USA Founders warned vehemently of two party political systems, like the ones that wrecked Europe.

Late 1700s, early 1800s USA infected with at least two political parties.

1832 Skull and Bones formed, one of the founders, Russell, and his family were perennial dominating controllers of the global opium empire.

A few comments on the wikipedia article:

1835 Assassination attempt on President Andrew Jackson. Jackson used his cain to beat the would be assassin.

Four US Presidents have been assassinated, all 4 by "lone nuts":
Lincoln, Garfield, McKinley, Kennedy

Teddy Roosevelt, two term president 1901 to 1909, ran in 1912 election in the Progressive Party, against incumbent president Taft (Skull and Bones member, noting the republican't party split during Taft's presidency, conservative republican'ts followed Taft, progressive republicant's followed Roosevelt) Wilson (who won), and Debs. Roosevelt was shot by a "lone nut" while campaigning as a Progressive but Roosevelt survived and kept campaigning right after being shot.

Shortly after becoming president Reagan was shot by a supposed family friend of the Buscherffs, John Hinckley.

1909 a "lone nut,"  stopped from firing a shot, tried unsuccessfully to assassinate Skull and Bones member Taft. Seems another Yalie besides Taft (Hammond) may have somehow been involved.

1975 September 5 Lynette "Squeaky" Fromme (one of the Manson tied-to-an-agency bots) was poised to shoot Gerald Ford ("Warren Commission move the JFK back exit wound up) with a 1911 Colt 45 but was stopped. Had she been successful vice president Nelson Rockefeller would have been president, Rockefeller having been in on that CIA/Pegasus tape recorded 1963 era planning phone call with Dulles, LBJ, Hoover, and Buscherff.
1975 September 22 another failed attempt at shooting Ford, this time by Sara Moore.

1979 Raymond Lee Harvey and Osvaldo (Oswaldo) Ortiz were implicated in a possible assassination attempt on President Carter.
Buscherff supposed family friend John Hinckley who shot Reagan earlier almost shot President Carter.

Not on the wikipedia page but seems one day GW Buscherff was jogging and some guy was driving a car that left the road and almost hit GWB.