What refers to the ability of a member of Congress to sign his/her name on an envelope as

postage for that correspondence.

Franking

Explanation:

Franking refers to the ability of a member of Congress to sign his/her name on an envelope as  postage for that correspondence.

so they can defeat there oppenent

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.