The vast majority of Republican voters in California support a measure that would require voters to present a government-issued ID for in-person voting, according to a new poll by UC Berkeley’s Institute of Governmental Studies. 

According to the poll, which was sponsored by the Los Angeles Times, 92% of Republicans support Proposition 39, which provides a number of election-integrity requirements that proponents say will ensure only citizens are voting. 

However, in the Democrat-heavy state, Republican support is overwhelmed by Democrat opposition. The poll found that 87% of Democrats oppose the measure, as do 54% of those who said they have "no party preference." 

Of all likely voters, 57% are planning to vote no on the measure, and 37% are planning to vote yes. Another 5% are undecided. 

The poll of 2,787 registered California voters was conducted online in English and Spanish Oct. 19-25 and has a margin of error of about 3 percentage points in either direction.