Two weeks ago, their relatively restrained campaigns turned hostile.
So when it became clear that the Senate seat held by Hillary Rodham Clinton would become open, Mr. Cuomo restrained himself from overt campaigning and retreated to the background.
As the conflict has intensified, so has diplomatic pressure on Israel to restrain its military campaign.
His launch speech featured a defence of Social Security and Medicare, two government programmes for the old which many Republicans would like to reform (ie, restrain).The Republican campaign unfolds against a backdrop of intense distrust of Mr Obama among conservatives.
The raising and doling out of lavish sums has been dispiriting to watch, a muddle of incompetence, avarice and special pleading, only vaguely restrained by the nation's campaign finance laws.
He was furious, too, at Robert Shrum, his chief strategist, and other campaign advisers who had restrained him from hitting back.
In a curious twist, much of what restrained Mr. Bush tonight was his own campaign's legal maneuvering over the last week, according to several Republican officials with ties to the Bush campaign.
By today's standards, the supposed sins against which she campaigned 40 years ago, now seem extraordinarily restrained and even innocent.
After 9-11, that campaign decreased, and it was further restrained by the late, reformist King Abdullah, who died in January 2015 and was succeeded by King Salman.
Unlike other aspirants, Mr. Cuomo did not publicly campaign for the post, and he largely restrained aides from lobbying for him or against his rivals.
