What is the most effective way for congress to prevent a president's foreign policy? cut off budget support for that policy pass a resolution against that policy rally public opinion against that policy refuse to ratify a treaty is it a?

In general, the most effective way for Congress to prevent a president's foreign policy would be "cut off budget support for that policy" since Congress needs to approve funding. The President could still issue an executive order, however.

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.