Washington, May 21 (IANS): Democrat front-runner and Republican Party's presumptive presidential nominee Donald Trump were deemed "extraordinarily unpopular" as they head into their party's conventions in July, a new poll showed.

According to the joint New York Times and CBS poll released on Friday, nearly two-thirds -- 64 percent -- of registered voters answered "no" when asked if Trump and Clinton are "honest and trustworthy", CNN reported.

Two-thirds of voters also said Trump does not share their values, while only 37 percent of voters said Clinton did share their values.

Seventy percent of registered voters said Trump does not have the right temperament, while only 48 percent said the former secretary of state had the right temperament, the poll found.

However, the majority of voters said both Trump (55 percent) and Clinton (54 percent) have "strong qualities of leadership".

Eighty percent of Democrat voters said they were "mostly hopeful" about the future of their party. More than half -- 55 percent -- of Republican voters said they are "mostly hopeful" about the future of their party.

The nationwide poll was conducted on smartphones and landlines between May 13-17 with 1,109 registered voters, with a margin of error of plus or minus 3 percentage points.