The event that was an attempt for states to resolve their differences before the Constitutional Convention was the Annapolis Convention.
Explanation
The Annapolis Convention was held in Annapolis (Maryland), on September 11-14, in 1786 and it was created to discuss, develop and remove the trade barriers that each state had established since the government had no power to regulate trade between the states.
Only twelve delagates from five states attended the convention (New York, Pennsylvania, New Jersey, Virginia and Delaware) and it failed to accomplished its purpose, but the recommendations made by the delagates were later adopted by the U.S Congress.
In both the Johnson and Clinton impeachment cases:
The House impeached them and the Senate acquitted them.
President Andrew Johnson Johnson opposed radical plans proposed in Congress concerning Reconstruction, preferring a more lenient approach. He sought to remove Secretary of War Edwin Stanton, a leader among the radical Republicans. These were some of the factors which caused friction between Johnson and Congress and led to their attempt to impeach him.
In the case of President Clinton, the impeachment charges had to do with lying under oath and obstruction of justice, in regard to the investigation of his sexual affair with a White House intern named Monica Lewinsky.
On May 10, Hitler invaded the Low Countries—Belgium, Luxembourg and the Netherlands—and France. The same day, Chamberlain formally lost the confidence of the House of Commons. Churchill, who was known for his military leadership ability, was appointed British prime minister in his place.
It adresses the problem where one side would control the other sides of the government and have too much power
