Hillary Clinton stops at Casa Bella Italian Restaurant to greet voters before heading to a rally in Scranton, Pa., on April 22. (Melina Mara/The Washington Post)

Hillary Clinton's campaign released a new 60-second ad Monday focused on one of Clinton's frequent refrains on the campaign trail: "Love and Kindness."

The ad will air in three states with primaries on Tuesday, but the message is very much aimed at a general election audience.

There is no dialogue, but as text scrolls across the screen, Clinton is seen with supporters including Geneva Reed-Veal, the mother of Sandra Bland and a frequent surrogate on issues such as police violence; Congressman John Lewis; and former Arizona congresswoman Gabby Giffords.

"Let's break down barriers, so we can all rise together, do all the good we can, in all the ways we can, for all the people we can," the ad says. "Let's protect each other. Let's stand together."

Music for the ad was written and performed by soul singer Andra Day, who also performed at a Clinton fundraising concert in New York earlier this year.

It will air in Philadelphia, Pittsburgh, Baltimore, and Hartford media markets.

The message of unity comes at a time when Clinton has pivoted away from attacking Sen. Bernie Sanders of Vermont after defeating him soundly in last week's New York primary. Although Sanders has vowed to stay in the race, upcoming primaries on Tuesday could make the task all the more difficult if he is unable to secure several much-needed victories and close the yawning gap in delegates that Clinton has racked up.

And although the ad does not mention Republican presidential candidate Donald Trump, as Clinton's previous ads have, the message of "love and kindness" is one that Clinton has often deployed on the campaign trail in response to Trump's rhetoric.