R dropped out of the Democratic (Party) presidential race in January and had previously served in cabinet positions in the Clinton administration. Political analysts say the R endorsement could help Obama win over more so called super delegates- Democratic Party activists (in) and office holders who will attend (at) the national nominating convention in August as uncommitted delegates.

       R is a professor of government(al) and politics at university of M, “This comes at a pivotal time, because Barack Obama has been suffering from some negative (issues) publicity and for a governor to step up and endorse him, (a) gives confidence to the other party leaders that they are moving in the (get) right direction.”

       The Clinton campaign hopes to (stand) stem the flow (over) of super delegates to Obama with the strong showing in P primary on April 22, where recent polls give her a sizeable lead.

Obama continues to lead the delegate count, but neither contender will be able to secure the party nomination before the August convention without considerable support from uncommitted super delegates.

NEW WORDS:

Pivotal: a 关键的

Publicity: n 公开

Uncommitted：a 未授权的

TIPS:

不知道脑子在想什么，一上来presidential就听不出了，小词：cabinet，stem，negative.