Hillary Clinton ad includes Donald Trump and Joe Arpaio

Democratic front-runner Hillary Clinton's presidential campaign has launched a Spanish-language television ad in Arizona that opens with images of Republican front-runner Donald Trump and Maricopa County Sheriff Joe Arpaio, the controversial immigration-enforcement figure who is backing Trump.

Speaking to the state's Latino community, the commercial's narrator touts Clinton's support for immigration reform, children's health care and affordable college and says: “There will always be obstacles, but with a friend like Hillary, we keep moving forward.”

The 30-second spot is running in the Phoenix, Tucson and Yuma television markets.

Clinton and her only rival for the 2016 Democratic nomination, left-leaning Sen. Bernie Sanders of Vermont, are in a fierce fight in Arizona, which holds its presidential preference election, or primary, on Tuesday, March 22.

Sanders is set to hold a rally in downtown Phoenix this evening. His wife, Jane Sanders, also has been campaigning this week in Arizona. On Monday, she went to Arpaio's Tent City jail and sparred with the sheriff over racial profiling and conditions at the detention center.

Arpaio's Maricopa County Sheriff's Office has been found by a federal judge to have racially profiled Latinos during enforcement activities.

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Nowicki is The Arizona Republic's national political reporter. Follow him on Twitter at @dannowicki and on his official Facebook page.