regiment, united with Tennesseeans, drove the Mexicans from their redoubts with such gallantry that their leader won the admiration and confidence of the entire army. At Buena Vista the riflemen and Indiana volunteers under Davis evidently turned the course of battle into victory for the Americans by a bold charge under heavy fire against a larger body of Mexicans. It was immediately on this brilliant success that a fresh brigade of Mexican lancers advanced against the Mississippi regiment in full gallop and were repulsed by the formation of the line in the shape of the V, the flanks resting on ravines, thus exposing the lancers to a converging fire. Once more on that day the same regiment, now reduced in numbers by death and wounds, attacked and broke the Mexican right. During this last charge Colonel Davis was severely wounded, but remained on the field until the victory was won. General Taylor's dispatch of March 6, 1847, makes special complimentary mention of the courage, coolness and successful service of Colonel Davis and his command. The Mississippi regiment served out its term of enlistment, and was ordered home in July, 1847. President Polk appointed Colonel Davis brigadier-general, but he declined the commission on the ground that that appointment was unconstitutional.
In August, 1847, the governor of Mississippi appointed Mr. Jefferson Davis to the vacancy in the United States Senate caused by the death of Senator Speight, and he took his seat December 6, 1847. The legislature elected him in January for the remainder of the term, and subsequently he was re-elected for a full term. His senatorial career, beginning in December, 1847, extended over the eventful period of 1849 and 1850, in which the country was violently agitated by the questions arising on the disposition of the common territory, and into which the subject of slavery was forcibly injected. The compromise measures of 1850 proposed by Mr. Clay, and the plan of President Taylor's administration, were both designed
