Martin Van Buren actually said...
With a fixed determination to use all the means in my power to put a speedy and satisfactory termination to these border troubles, I have the most confident assurances of the cordial cooperation of the British authorities, at home and in the North American possessions, in the accomplishment of a purpose so sincerely and earnestly desired by the Governments and people both of the United States and Great Britain.
06/20/1838