Mr. Calhoun succeeded Mr. Upshur as Secretary of State, and he was known as a friend of annexation. Mr. Van Buren, replying to a letter from Mr. William T. Hammett, a representative in Congress from Mississippi, announced his opposition to the immediate annexation of Texas, because it would produce a war with Mexico. He expressed himself in favor of the measure when it could be done peaceably and honorably. Mr. Clay announced his opposition to the measure. In December, 1843, the British Premier, Lord Aberdeen, in a dispatch to Sir Richard Packenham, British Minister at Washington, denied that Great Britain had any design on Texas, but announced (which was superfluous, and not germane to the charge which he felt called upon to deny) that "Great Britain desires and is constantly exerting herself to procure the general abolition of slavery throughout the world." This provoked a correspondence between Mr. Calhoun and the British Minister. In his annual message to Congress at the commencement of the session of 1843-'44 the President expressed himself very strongly in regard to war being waged by Mexico against Texas. The proposed treaty for annexation was rejected by the Senate June 8, 1844, by a vote of thirty-five to sixteen. Mr. Benton presented a plan for the peaceful acquisition of Texas, but the Senate refused to adopt it. President Tyler in his last message again referred to the war between Mexico and Texas, and said: "I repeat now what I then said, that after eight years of feeble and ineffectual efforts to recover Texas, it was time that the war should have ceased."