In March 1895 President Cleveland gave his decision, which was wholly favourable to the contention of Brazil.
On the 18th of December 1895 a message was sent to the United States Congress by President Cleveland practically stating that any attempt on the part of the British Government to enforce its claims upon Venezuela as regards the boundary between that country and Guiana without resort to arbitration would be considered as a casus belli by his government.
This circumstance, as well as the failure to make other desired reductions, caused the ardent tariff reformers to be greatly disappointed with the act of 1894 as finally passed, and led President Cleveland to permit it to become law without its endorsement by his signature.
The Guiana boundary question began now to assume an acute stage, the Venezuelan minister in Washington having persuaded President Cleveland to take up the cause of Venezuela in vindication of the principles of the Monroe doctrine.
In April 1896 he was appointed by President Cleveland consul-general at Havana, with duties of a diplomatic and military character added to the usual consular business.
This line was defined by the treaty of 1857, and by the decision of President Cleveland in 1895 with regard to the small section between the Uruguay and Iguassu rivers.
On the 17th of December 1895 President Cleveland sent to Congress a special message calling attention to Great Britain's action in regard to the disputed boundary line between British Guiana and Venezuela, and declaring the necessity of action by the United States to prevent an infringement of the Monroe Doctrine.
Blaine, and served until the inauguration of President Cleveland in 1885.