No one! Look at Nixon, Clinton, and Andrew Johnson...impeachment charges or the risk of impeachment these individuals faced while in the White House.
President George H.W. Bush is a very conservative and pragmatic leader. He showed these traits in dealing with foreign affairs. Before acting on a situation, he studies the policies first. An example of his conservatism and pragmatism involved China.
When the Chinese government gunned down their people who conducted a peaceful protest, the US government didn't react as harshly as its people wanted. They imposed limited sanctions. This is because President Bush knows that they still have to deal with China in the future. He did not burn down the bridge on this foreign relation.
Marcus Garvey a controversial figure through a lifetime of events
The mediate cause for World War 1 the assassination of Archduke Franz Ferdinand and his pregnant wife Sophie. However there were many other causes of WW1. WW2 started because hitler didn’t like Jewish people so he built an army to destroy all Jewish people wich then started the war.
The Tet Offensive in January of 1968 and the ever-increasing body count fueled the anti-war movement, bringing in people from all walks of life.