Andrew Lamar Alexander Jr. (born July 3, 1940) is an American politician serving as the senior United States Senator from Tennessee, a seat he has held since 2003. A member of the Republican Party, he also was the 45th Governor of Tennessee from 1979 to 1987 and the 5th United States Secretary of Education from 1991 to 1993. Born in Maryville, Tennessee, Alexander graduated from Vanderbilt University and the New York University School of Law. After establishing a legal career in Nashville, Tennessee, Alexander ran for Governor of Tennessee in 1974, but was defeated by Democrat Ray Blanton.

Alexander served as the United States Secretary of Education from 1991 to 1993. As Education Secretary, he sparked controversy after he approved Transnational Association of Christian Colleges and Schools (TRACS) to accredit schools despite an advisory panel that repeatedly recommended against it in 1991 and 1987.  In 1993, Steve Levicoff published a book-length critical discussion of TRACS and Alexander's decision in When The TRACS Stop Short.  Former Department of Education employee and writer Lisa Schiffren has stated that, "His fortune is founded on sweetheart deals not available to the general public, and a series of cozy sinecures provided by local businessmen. Such deals are not illegal..." Schiffren further notes that, in 1987, Alexander helped found Corporate Child Care Management, Inc. (now known as Bright Horizons Family Solutions Inc.), a company that - via a merger - is now the nation's largest provider of worksite day care. While businessman Jack C. Massey spent $2 million on this enterprise, Alexander co-founded the company with only $5,000 of stock which increased in value to $800,000, a 15,900 percent return within four years. Also in 1987, he a wrote a never-cashed investment check for $10,000 to Christopher Whittle for shares in Whittle Communications that increased in value to $330,000. In 1991, Alexander's house just purchased for $570,000 was sold to Whittle for $977,500. Alexander's wife obtained an $133,000 profit from her $8,900 investment in a company created to privatize prisons. Alexander frequently shifted assets to his wife's name, yet such transfers are not legal under federal ethics and security laws. In his 2005 US Senate financial disclosure report, he listed personal ownership of BFAM (Bright Horizons Family Solutions) stock valued (at that time) between $1 million and $5 million. He taught about the American character as a faculty member at Harvard University's Kennedy School of Government.

Answer the following question by taking a quote from the article: Is Alexander still active in US politics?