The President whose cabinet James Mattis served on assumed office on what date?
James Mattis James Norman "Jim" Mattis (born September 8, 1950) is a retired United States Marine Corps general who is the 26th and current United States Secretary of Defense, serving in the Cabinet of Donald Trump. Mattis was previously the 11th Commander of United States Central Command during the presidency of Barack Obama, and was responsible for American military operations in the Middle East, Northeast Africa, and Central Asia.
30th United States Congress The Thirtieth United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C. from March 4, 1847, to March 4, 1849, during the last two years of the administration of President James K. Polk. The apportionment of seats in the House of Representatives was based on the Sixth Census of the United States in 1840. The Senate had a Democratic majority, and the House had a Whig majority. It was the only Congress in which Abraham Lincoln served.