For 10 points, name this orator from New Hampshire who negotiated a treaty with Baron Ashburton.
This man controversially supported the Fugitive Slave Act in his Seventh of March speech. He concluded a speech in a debate with Robert Hayne with the words, "Liberty and Union, now and forever, one and inseparable!" This man argued that a state could not revoke a charter granted to his alma mater in the Supreme Court. As Secretary of State under (*) William Henry Harrison and John Tyler, he negotiated a treaty defining the border between Maine and Canada. For 10 points, name this orator from New Hampshire who negotiated a treaty with Baron Ashburton.
This man controversially supported the Fugitive Slave Act in his Seventh of March speech.
Daniel {Webster}