As Hillary Clinton formally netted the endorsement of Bernie Sanders on Tuesday, questions remain as to whether the legions of young people who flocked around the Vermont senator’s candidacy will now show the same enthusiasm for her campaign.

While polls overall have shown that most Sanders supporters have made peace and are content with voting for Clinton in a general election against Donald Trump, the presumptive Republican presidential nominee, some young people do not have favorable views of the former secretary of State and struggle to trust her.

A survey released on Tuesday by GenForward, a collaboration between the University of Chicago and the Associated PressNORC Center for Public Affairs Research, showed that 26% of young whites ages 18-30 and 49% of Latinos in the same age bracket have a  favorable opinion of Clinton. Her strongest support came among blacks, with two-thirds offering a favorable opinion of her candidacy and 55% of Asian Americans who view her favorably.

The poll, conducted June 14 to 27, surveyed nearly 2,000 adults ages 18-30 who identified as African American, Latino, Asian American and white. Its results came before last week’s announcement by the Department of Justice that it would not seek any charges against Clinton for her use of a personal email server while overseeing the State Department.

The poll showed that 64% of  young Latinos, who according to a Pew Research report from earlier this year will account for nearly half of the record 27.3 million eligible Latino voters projected this November, do not believe Clinton is honest and trustworthy. Eighty-two percent of whites and 57% of Asian Americans also do not trust her, according to the poll. However, half of young African Americans polled believed she is trustworthy. (Among all ethnicities polled, Trump was widely viewed as untrustworthy. Ninety-one percent of blacks and 87% of young Asian Americans viewed him as not honest and trustworthy, along with 86% of Latinos and 74% of whites.)

Throughout the Democratic primaries, general divides existed with younger blacks, Latinos and whites supporting Sanders over Clinton.

Overall, among those who preferred Sanders in the primaries, half say they are now prepared to back Clinton in the general election, according to the GenForward poll.

Clinton has made efforts to boost support among younger voters.

Last week, she expanded the scope of her higher education plan to offer free college tuition to millions of families. Her proposal would grant free tuition at public schools to students in families earning $85,000 a year or less, with that threshold increasing to $125,000 by 2021. The proposal, an olive branch of sorts to Sanders’ younger supporters, came after a primary in which the Vermont senator’s key education platform included tuition-free college at all public colleges and universities.

Sanders noted the issue while the two campaigned together on Tuesday in New Hampshire.

“Hillary Clinton believes that we must substantially lower student debt and that we must make public colleges and universities tuition-free for the middle class and working families of this country,” said Sanders as Clinton stood at his side, nodding in agreement.