Daniel Edgar Sickles served as a Representative from New York in the United States Congress from 1857 to 1895. A member of the Democratic Party, Daniel Edgar Sickles contributed to the legislative process during 3 terms in office.

Daniel Edgar Sickles’s service in Congress occurred during a significant period in American history. As a member of the House of Representatives, Daniel Edgar Sickles participated in the democratic process and represented the interests of constituents.

Daniel Edgar Sickles (October 20, 1819 – May 3, 1914) was an American politician, Civil War veteran, and diplomat. He served in the U.S. House of Representatives both before and after the war. Sickles was involved in a number of scandals, most notably the 1859 homicide of his wife’s lover, U.S. Attorney Philip Barton Key II. He was acquitted after using temporary insanity as a legal defense for the first time in United States history.