️<unk>️<unk>️<unk>️  (CNN) For those who hoped that the coming presidential election would usher in the dawn of a new, more inspiring politics, this past week has been deeply discouraging. (CNN) For those who hoped that the coming presidential election would usher in the dawn of a new, more inspiring politics, this past week has been deeply discouraging. In two key moments, leaders from both sides of the aisle have acted like the Bourbons of France, who famously remembered nothing and forgot nothing from battles of their past.<unk> <unk> <unk> <unk> <unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ <unk> <unk> <unk> <unk> <unk> In both instances, the principals started with legitimate concerns but have wound up making things worse.<unk> In both instances, the principals started with legitimate concerns but have wound up making things worse. In both cases, the principals have also created divisive issues that will deepen polarization through the campaign and probably into the next presidency.<unk> In both cases, the principals have also created divisive issues that will deepen polarization through the campaign and probably into the next presidency. Both have diminished the chances for breaking out of today's ugly politics.<unk> Both have diminished the chances for breaking out of today's ugly politics. Republicans in Congress have reason to press hard with their views as negotiations with Iran enter the home stretch. <unk> Republicans in Congress have reason to press hard with their views as negotiations with Iran enter the home stretch. ąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąą Equally important, Republicans believe, with cause, that as he negotiates, President Barack Obama has tried to sideline Congress in general and them in particular.<unk> Equally important, Republicans believe, with cause, that as he negotiates, President Barack Obama has tried to sideline Congress in general and them in particular. Who can blame them for arguing that if the President insists any agreement needs only executive approval -- not approval by Congress -- then the next chief executive should not be legally bound by its provisions? (Who can blame them for arguing that if the President insists any agreement needs only executive approval -- not approval by Congress -- then the next chief executive should not be legally bound by its provisions?) ️<unk>️<unk> ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ ąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąąą
David Gergen: Iran will almost certainly become a big issue in 2016 campaign. <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk>