Question: What was the mayor formerly of the principal city of the Knoxville Metropolitan Statistical Area?

Context paragraphs:
Knoxville metropolitan area: The Knoxville metropolitan area is the metropolitan area centered on Knoxville, Tennessee, the third largest city in Tennessee and the largest city in East Tennessee.  In 2014, the KMSA had an estimated population of 857,585.  The KMSA is, in turn, the central component of the Knoxville-Morristown-Sevierville Combined Statistical Area, which, in 2016, had a population of 1,117,758.

Shreveport-Bossier City-Minden CSA: The Shreveport-Bossier City-Minden Combined Statistical Area was made up of four parishes in northwestern Louisiana.  The statistical area consisted of then-Shreveport-Bossier City Metropolitan Statistical Area and then-Minden Micropolitan Statistical Area.  As of the 2010 census, the CSA had a population of 439,000 (though a July 1, 2011 estimate placed the population at 444,000).  On February 28, 2013, OMB changed definitions of census statistical areas, and all four parishes in this combined statistical area were redefined as Shreveport-Bossier City Metropolitan Statistical Area.

Rocky Top, Tennessee: Rocky Top (formerly Coal Creek and Lake City) is a city in Anderson and Campbell counties in the eastern part of the U.S. state of Tennessee, northwest of Knoxville.  The population was 1,781 at the 2010 census.  Most of the community is in Anderson County and is included in the Knoxville Metropolitan Statistical Area.  On June 26, 2014, the city officially changed its name from Lake City to Rocky Top, after a last-ditch effort by the copyright owners of the song "Rocky Top" was denied by a federal court.

Principal city: A principal city is the main core city in a metropolitan area.  The largest city in each metropolitan or micropolitan statistical area is designated a "principal city."  Additional cities qualify if specified requirements are met concerning population size and employment.  The title of each metropolitan or micropolitan statistical area consists of the names of up to three of its principal cities and the name of each state into which the metropolitan or micropolitan statistical area extends.

Casper, WY Metropolitan Statistical Area: The Casper, WY Metropolitan Statistical Area is a United States Census Bureau defined Metropolitan Statistical Area (MSA) with the principal city being Casper in central State of Wyoming.  The Casper Metropolitan Statistical Area is defined as Natrona County, Wyoming.  Many consider the Casper Metro Area to be the economic hub of central Wyoming.  The Census Bureau estimates that the population was 73,129 in 2008, ranking as the 375th most populous metropolitan area in the United States.

Lake Charles–Jennings CSA: The Lake Charles–Jennings combined statistical area is made up of three parishes in southwestern Louisiana.  The statistical area consists of the Lake Charles Metropolitan Statistical Area and the Jennings Micropolitan Statistical Area.  The largest principal city is Lake Charles, and the smaller principal city is Jennings.  As of the 2000 census, the CSA had a population of 225,003.  A July 1, 2009 estimate placed the population at 225,235.

Jacksonville metropolitan area: The Jacksonville metropolitan area, also called Greater Jacksonville or Metro Jacksonville, is the metropolitan area centered on the principal city of Jacksonville, Florida and including the First Coast of North Florida.  The U.S. Office of Management and Budget designates the area as the Jacksonville, Florida Metropolitan Statistical Area, a metropolitan statistical area used for statistical purposes by the United States Census Bureau and other government agencies.  The OMB defines the metropolitan statistical area as consisting of five counties: Duval, Clay, St. Johns, Nassau, and Baker.  According to the 2010 United States Census, the total population was 1,345,596, with a 2016 estimate of 1,478,212.  The Jacksonville metropolitan area is the 40th largest in the country and the fourth largest in the state of Florida, behind the Miami, Tampa, and Orlando metropolitan areas.

Portland metropolitan area, Maine: The city of Portland, Maine, is the hub city of a metropolitan area in southern Maine, in the United States.  The region is commonly known as Greater Portland or the Portland metropolitan area.  For statistical purposes, the U.S. federal government defines three different representations of the Portland metropolitan area.  The Portland–South Portland–Biddeford, Maine, metropolitan statistical area is a region consisting of three counties in Maine, anchored by the city of Portland and the smaller cities of South Portland and Biddeford.  As of the 2010 census, the MSA had a population of 514,098.  A larger combined statistical area (CSA), the Portland–Lewiston–South Portland combined statistical area, is defined as the combination of this metropolitan statistical area (MSA) with the adjacent Lewiston–Auburn MSA.  The CSA comprises four counties in southern Maine.  The Portland–South Portland metropolitan New England city and town area is defined on the basis of cities and towns rather than entire counties.  It consists of most of Cumberland and York counties plus the town of Durham in Androscoggin County.

Victor Ashe: Victor Henderson Ashe II (born January 1, 1945) is the former United States Ambassador to Poland.  From 1987 to 2003, he was mayor of Knoxville, Tennessee.  Ashe is a Republican.  Ambassador Ashe concluded his service as Ambassador to Poland on September 26, 2009.

Knoxville, Tennessee: Knoxville is a city in the U.S. state of Tennessee, and the county seat of Knox County.  The city had an estimated population of 186,239 in 2016 and a population of 178,874 as of the 2010 census, making it the state's third largest city after Memphis and Nashville.  Knoxville is the principal city of the Knoxville Metropolitan Statistical Area, which, in 2016, was 868,546, up 0.9 percent, or 7,377 people, from to 2015.  The KMSA is, in turn, the central component of the Knoxville-Sevierville-La Follette Combined Statistical Area, which, in 2013, had a population of 1,096,961.

Supporting paragraphs: Victor Ashe Knoxville, Tennessee
Answer: United States Ambassador to Poland