He could not identify the cause of continental drift.
President Truman fired General MacArthur for insubordination. Although Truman was committed to waging a limited war in Korea, preferring to negotiate with China and North Korea rather than expand hostilities, MacArthur openly disagreed with the president and threatened to attack China if it did not agree to terms of peace.
Twenty years after its implementation, the North American Free Trade Agreement, or NAFTA, has helped boost intraregional trade between Canada, Mexico, and the United States, but has fallen short of generating the jobs and the deeper regional economic integration its advocates promised decades ago.
He was more of a democratic, which the Whig party didn't liked since they looked out only for the high class and not the middle or low class.
The Whigs disliked John Tyler because during his presidency, he vetoed many bills from then. He was also known for impriving the relationship between Great Britain and the United States.
He was William Henry Harrison's Vice President but Harrison died 32 days later after being chosen for president because of pneumonia.