Correlation: Mayor Party affiliation and City?

According to the US Census Bureau, 2006 American Community Survey, August 2007 the top ten poverty stricken, major cities 250,000 or more people, was:

1. Detroit, MI – 32.5%
2. Buffalo, NY – 29.9%
3. Cincinnati, OH – 27.8%
4. Cleveland, OH – 27.0%
5. Miami, FL – 26.9%
6. St. Louis, MO – 26.8%
7. El Paso, TX – 26.4%
8. Milwaukee, WI – 26.2%
9. Philadelphia, PA -25.1%
10. Newark, NJ – 24.2%

The mayors of the above cities have one thing, with one exception, in common over the past 20 years; Democrat Mayors. The last non-Democrat mayor in Detroit, MI was Louis Miriani (1957-1962). Chester A. Kowal (1962-1965) was the last non-Democrat Mayor of Buffalo, NY. Arnold L. Bortz (1983-1984) was the last non-Democrat Mayor of Cincinnati, OH. George V. Voinovich (1980-1989) was the last non-Democrat Mayor of Cleveland, OH. Miami, Florida is the lone exception with an independent Mayor since 2001; Manny Diaz. The last non-Democrat Mayor for St. Louis, MO was Aloys P. Kaufmann (1943-1949). El Paso, Texas has never elected a Republican Mayor. The last non-Democrat Mayor of Milwaukee, WI was Frank Zeidler (1948-1960) a Socialist. The last non-Democrat Mayor was Republican Bernard Samuel (1941-1952). In Newark, NJ last elected a non-Democrat Mayor in 1903 when Republican Henry Doremus served from 1903-1907.

Lately Republican leadership has led the party down the road that blurs the ideaological line between the two major parties in the United States. With Congress approving President Obama’s $2.1T budget, along party lines, should Americans be concerned by the potential correlation that exists with poverty rates of major cities and party affiliation of the Mayor?