Member's received illegal kickbacks. Those kickbacks from oil companies made some members rich men and the scandal broke etc
Christopher Columbus discovered America
By threatening a veto, the President can persuade legislators to alter the content of the bill to be more acceptable to the President. Congress can override a veto by passing the act by a two-thirds vote in both the House and the Senate. (Usually an act is passed with a simple majority.)
It was seen as interfering with the US power and it would allow countries to see internal affairs in the USA.
hope this helps x