JAMES BUCHANAN 217 the senate. The veto power "owes its existence," said he, "to a revolt of the people of Rome against the tyrannical decrees of the Roman senate. The president of the United States, elected by his fellow-citizens to the highest official trust in the country, is directly responsible to them for the manner in which he shall discharge his duties ; and he will not array himself, by the exercise of the veto power, against a majority in both houses of congress, unless in extreme cases, where, from strong convictions of public duty, he may be will ing to draw down upon himself their hostility." Mr. Buchanan was one of those that opposed the ratification of the treaty with England negotiated by Mr. Webster and Lord Ashburton in 1842. In 1843 he was elected to the senate for a third term, and in 1844 his name was brought forward as the democratic candidate of Pennsylvania for the presi dential nomination; but before the national con vention met he withdrew in order that the whole strength of the party might be concentrated upon one candidate. James K. Polk was elected; he asked Mr. Buchanan to become his secretary of state, and the invitation was accepted. In this responsible position Mr. Buchanan had two very important questions to deal with, and they required the exercise of all his political tact and indefatigable industry. One was the settlement of the boundary between the territory of Oregon and
