In the video, Stewart asks supporters to pledge their support for the budget, and to ask "friends, family, and neighbors" to do the same.
Once ticket-holders arrive at a rally, each potential voter is instantly given the opportunity to go from fan to oath-taker: the volunteers hand out supporter cards, encouraging attendees to pledge their support for Trump in the primary and the general election, as well as check boxes to volunteer and have their name used on press releases.
The aim is for others to pledge their support as well.
Celebrities, authors and footballers have spoken out to pledge their support for the thousands of refugees seeking sanctuary in Europe.
"We will ask politicians to pledge their support for a time limit on the detention of adults – and to work with us… to make it happen".
His four rivals were swift to acknowledge his victory, even joining him on stage later in the evening to pledge their support for his campaign.
It was wholly right for David Cameron and George Osborne to pledge their support to the government for measures to address the banking crisis.
A series of endorsements are scheduled to be announced in the coming days, including superdelegates who intend to pledge their support for Mr. Obama.
But mostly his campaign has consisted of groups of elders coming to see him or, in Kandahar, his brother, to pledge their support.
Iceland and Suriname hope it will build on the HeForShe campaign Watson launched, which has so far encouraged 204,978 men to pledge their support to the cause.
Which? is launching a digital campaign on Monday, asking consumers to come forward and pledge their support for single unit prices to simplify the tariffs.
