http://en.wikipedia.org/wiki/Arlen_Specter
起初就是民主党人
A Democrat in his youth, Specter joined the Republicans in 1966;
http://www.chicagotribune.com/news/la-na-specter29-2009apr29,0,4439026.story
Some Democrats skeptical of Specter's party switch
http://www.chicagotribune.com/news/la-na-specter-assess29-2009apr29,0,2038572.story
since dems and reps are carrying different kinds of heads, aren't they?
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就象 杨振宁先生的 '新婚' -- 难说了, 不是吗?
