TALLAHASSEE — In the shadow of Walt Disney World, in one of Florida’s fast-growing metropolises, Democrats are assembling a political machine that they’re counting on to destroy President Donald Trump’s dreams of reelection.

The president must win Florida to capture a second term. But the increasingly Democratic Orlando region stands in his way as one of the few places in Florida with a bench of Democratic officials and a grassroots infrastructure to go along with it. As a result, the Biden campaign and Florida Democrats think it can help deliver the crowning blow to Trump in November.

Driving the leftward momentum: explosive urban growth, fueled by young voters and those with Puerto Rican roots, like Mercado. They are spreading from Orlando and Kissimmee throughout the swing state’s swing area, the Interstate 4 Corridor, which the Orlando media market anchors in the middle of the state.

“It’s spreading from Orlando into the surrounding areas. Just look at the highway system, it’s like a heart pumping blue blood in every direction from Orlando,” he said.