According to this report 83% of Americans think any deal with Iran should require congressional approval.
http://hotair.com/archives/2015/04/01/fox-poll-83-percent-call-iran-untrustworthy-huge-majority-says-obama-must-get-congressional-approval-for-deal/Fox News’ fresh scientific nationwide poll reflects deep public skepticism of Iran, and an overwhelming consensus that the Obama administration must seek Congressional approval for any nuclear deal struck with the regime in Tehran — if one emerges at all, that is:
That last lopsided number includes 89 percent of Republicans, 79 percent of independents and nearly two-thirds of Democrats. It also mirrors Pew’s recent finding that heavy majorities want Congress to have the final say on a potential agreement. The concept is pretty straightforward, actually: The legislative branch has a Constitutionally-specified role in foreign policy decisions, particularly as it pertains to treaties. If O wants his terrible deal to have any legal weight beyond January 20, 2017, he needs Congressional buy-in. Hmm, perhaps those 47 Republican Senators (and 367 members of the House) were simply stating facts and justifiably defending their prerogatives, rather than committing sedition, or whatever. Respondents split (47/44) on the acceptability of the deal based on vague, anodyne wording, but give low marks to another Obama administration negotiation fiasco: