WASHINGTON (AP) — Chelsea Clinton said Tuesday it’s surprising to hear that her mom is slipping in the polls because she’s “my hero.”

The young Clinton, who has a daughter of her own, says she believes that as more Americans get a chance to hear from Hillary Rodham Clinton, they will understand “why I believe so strongly that she would make a great president.”

Despite a big fundraising advantage and a slew of endorsements from party leaders, Hillary Clinton’s standing with voters has slipped — multiple polls show a majority of Americans don’t find her honest and trustworthy. Chelsea Clinton was asked about those polls on NBC’s “Today” show.

“I’m not a pundit. I’m a daughter,” Chelsea Clinton said. “And I love and admire my mom.”

When asked what Hillary is like as a grandmother, Chelsea Clinton said her mom is always game for singing “The Wheels on the Bus” to baby Charlotte and is helping her learn to walk. When asked whether her mom was a good singer, Chelsea Clinton laughed and said: “Not at all.”

Chelsea Clinton was interviewed on NBC’s “Today” show about her new book, “It’s Your World: Get Informed, Get Inspired & Get Going!”