The Democrats' crushing defeat in the Nov. 4 midterm elections has paved the way for a more hawkish US role in the Middle East, starting with the Iran nuclear talks.

Republicans have gained control of the Senate and strengthened their lock on the House in what amounts to a referendum on President Barack Obama's policies, including his failure to foresee and forestall the rise of the Islamic State (IS). The unexpectedly lopsided victory creates intense political pressure on Obama to shift course, not only on Iran but also with regard to Syria/Iraq, Israel, Egypt and other Middle East issues.

One of the first priorities for the new Republican Senate will be deciding the role it wants to play in overseeing — and possibly derailing — the negotiations with Iran, which are still expected to produce some kind of deal or at least an agreement to keep talking by the Nov. 24 deadline. The Democrat-controlled Senate managed to stave off a vote on bipartisan sanctions legislation this year following an intense lobbying campaign by the administration, but the new Republican leadership will most likely demand a say.

One top contender for a vote is a bill by Senate Foreign Relations Chairman Robert Menendez, D-N.J., and Banking Committee Mark Kirk, R-Ill., that would slap new sanctions on Iran if it fails to abide by its previous agreements. It has garnered 60 co-sponsors — including 17 Democrats (several of whom lost re-election) and all but two Republicans. Rank-and-file members will demand a vote when Sen. Mitch McConnell, R-Ky., replaces Senate Majority Leader Harry Reid, D-Nev., in January.