Senate to hold one more vote on Iran nuclear deal

Senate Republicans will try a second time today to move ahead on a resolution rejecting the Iran nuclear deal, and the outcome is expected to be the same: Democrats are poised to block the measure and preserve President Barack Obama’s foreign policy win.

Last week, Senate Democrats blocked Republican attempts to get a disapproval resolution to Obama’s desk and House Republicans settled for passing two related measures that are never expected to get out of Congress.

The international accord backed by the United States, Iran and five world powers would curb Iran’s nuclear program in exchange for relief from crippling sanctions that have undercut Tehran’s economy.

Senate Majority Leader Mitch McConnell has scheduled another vote on Tuesday to end debate.