The latest superdelegate to line up behind Obama is veteran Senator Robert Byrd of West Virginia.

最新站出来支持奥巴马的超级代表是西维吉尼亚州的资深参议员伯德。

In (the southwestern state of) Arizona, veteran U.S. Senator John McCain is expected to easily defeat former U.S. Representative J.D. Hayworth in a Republican Party primary.

在美国西南部的亚利桑纳州，预计资深参议员麦凯恩在共和党初选中会轻易击败前众议员海沃思。