Democratic vice presidential nominee Tim Kaine attends an event in Cleveland on Labor Day. (Melina Mara/The Washington Post)

ANN ARBOR, Mich. — Sen. Tim Kaine of Virginia made his debut Tuesday in the Democratic presidential ticket’s radio advertising campaign, speaking in Spanish.

In a 60-second spot directed at Latino voters, the vice presidential hopeful recalls his experience decades ago working with Jesuit missionaries in Honduras and talks about values learned while there. Kaine’s pitch to support the Democratic ticket is airing in Florida, Ohio and Nevada, states where Latino turnout is key, the campaign said.

Kaine frequently breaks into Spanish while on the campaign trail. In 2013, he made history by delivering an entire Senate floor speech on immigration reform in Spanish.

Recent polls have showed Democratic presidential nominee Hillary Clinton leading Republican nominee Donald Trump among Latinos by sizable margins. That lead roughly matches the one that President Obama held in defeating Republican Mitt Romney in 2012.  Some Democrats have been surprised that Clinton isn't leading even more, given Trump's strong anti-immigrant campaign rhetoric.

Clinton’s campaign is in the midst of an aggressive push to boost Latino turnout in November. Kaine is campaigning for the ticket Wednesday in Michigan.