More than 50% of American voters believe that the U.S. presidential nomination system is rigged and more than 65% want to see the process changed.
The parties decide how delegates are awarded in each state, both Republican and Democrats have different rules.
The delegates’ personal opinions may come into play at the part conventions if the race is too close to call.
According to Reuters, Republican National Committee Chairman Reince Priebus has dismissed Trump’s complaints as ‘rhetoric’ and said the rules would not be changed before the Republican convention in July.
The New York billionaire has over 950 delegates, compared to 560 for Cruz.
A total of 1,237 delegates are needed to secure the Republican nomination.
On Tuesday, Clinton won Pennsylvania, Maryland, Delaware and Connecticut, while Sanders won in Rhode Island. Clinton leads Sanders by 2,141 delegates to 1,321, according to the AP, with 2,383 needed to win the nomination.
The poll included 1,582 Americans.
