Hillary Clinton's presidential campaign hit Republican front-runner Donald Trump in its first New York ad released Wednesday.

The 30-second spot, set to air ahead of New York's April 19 primaries, marks the Clinton campaign's first pivot to a potential general election opponent, even as she continues to compete in the Democratic race against Vermont Sen. Bernie Sanders.

"New York. Twenty million people strong. No, we don't all look the same. We don't all sound the same, either," Clinton's voice says in the ad. "But when we pull together, we do the biggest things in the world."

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The spot features footage of a diverse New York, contrasted sharply against imagery from Trump's presidential campaign.

"When some say we can solve America's problems by building walls, banning people based on their religion, and turning against each other -- well, this is New York. And we know better," Clinton says, referencing Trump's proposals to erect a wall along the U.S.-Mexico border and to temporarily ban Muslims from entering the country. The spot also includes violent video footage from one of Trump's political rallies earlier this month, where a Trump supporter suckerpunched a protester in the face.

Clinton's ad comes just one day after the former New York senator first condemned Trump for his campaign manager's rough handling of reporter Michelle Fields.

"What Donald Trump has been doing these last months is inciting violent behavior," Clinton said while campaigning in Wisconsin Tuesday, calling him a "political arsonist."

Clinton will be in New York campaigning ahead of the state's primary, the largest prize of April's nominating contests, with 247 delegates up for grabs.