Lincoln Memorial University operates the Powell River Aquatic Research Station, which is located where Tennessee State Route 63 crosses the river at the Brooks Bridge in Claiborne County, Tennessee. The center, which opened in April 2008, allows for on-site research of water quality, flora, fauna and related habitat.
The only two presidents to have been impeached were Andrew Johnson and William Clinton. Neither of them were found guilty of the charges, therefore neither of them were â¦removed from office. None. Presidents Andrew Johnson and Bill Clinton were both impeached by the House, but never found guilty by the Senate.
<<Back. Two presidents have been impeached â President Andrew Johnson in 1868 and President Bill Clinton in 1998. Senators called for President Jacksonâs impeachment after he replaced the Secretary of War without Senate approval. The U.S. Senate began proceedings, but votes fell short of the 2/3 majority needed for conviction.