One of the most successful tools in the Democratic Party campaign playbook has been the ability to target its message to specific audiences, promising solutions to issues that matter most to them.

The vaunted "ground game" employed by Barack Obama's campaigns – relying on digital technology and data mining to micro-target swing voters – is a fixture in Hillary Clinton's 2016 bid for the presidency.

The same strategic principle appears to be at work in the recent placement of commentaries and op-eds by Clinton in local newspapers.

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In the columns, Clinton and her massive staff of researchers and writers write with a specificity that suggests a native's familiarity with the issues.

In a guest column with Clinton's byline published Wednesday by Treasure Coast Newspapers in South Florida, the headline declares, "Floridians deserve clean water."

The issue touches on a basic need that is foremost in the minds of South Floridians.

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The column begins:

Water is life. Clean water sustains our health, our families, our agriculture and our businesses. Clean water is a basic right of all Americans, and Floridians deserve for their water to be safe to drink, their beaches to be safe to swim and their waterways to be safe to fish.

Clinton blames the lingering clean-water problem on Republican Gov. Rick Scott and his belief – shared by Donald Trump, she noted – that "climate change is a hoax."

In Utah, where polls indicate the once-reliably Republican state is within Clinton's grasp, she wrote Aug. 15 in the Deseret News daily – which is owned by the Church of Jesus Christ of Latter Day Saints – "What I have in common with Utah leaders."

Clinton targeted the Mormon-majority population by comparing Donald Trump's call to scrutinize Muslim refugees to prevent terrorism with "President Rutherford B. Hayes’ attempt to limit Mormon immigration to America in 1879."

She concluded:

Generations of LDS leaders, from Joseph Smith and Brigham Young to Gordon Hinckley and Thomas Monson, have noted the infinite blessings we have received from the Constitution of the United States. The next president will swear an oath to preserve, protect and defend that document for successive generations. And if you give me the honor to serve as your president, I will fight every day to carry out that sacred responsibility.

The rival Salt Lake Tribune reported Thursday on the column.

"Seizing on an opportunity to capitalize on tepid support for Donald Trump in the historic Republican stronghold of Utah," the paper said, "Democratic nominee Hillary Clinton made an extraordinary appeal to Mormon voters Wednesday, touting her support for religious liberty and defense of the Constitution."

Columnist Hillary Clinton

As first lady in the 1990s, Clinton had a weekly syndicated column, "Talking it Over," in which she discussed the issues of the day, with occasional jabs at opponents for such things as "scandal-mongering" over the Whitewater investigation.

The column was distributed by Creators Syndicate to about 100 newspapers beginning in July 1995.

But the following January, Oregonian Editor Sandra Mims Rowe stopped running it, explaining she thought "it was too political, or bordering on too political, especially during an election year."

The White House noted when the column was about to debut that the first lady received no payment for it.

During his first campaign for president in 2008, Barack Obama had an op-ed published in the New York Times titled "My Plan for Iraq" in which he urged the phased removal of troops from the country, which now is partially controlled by ISIS.

But when Obama's opponent in the presidential election, Sen. John McCain, R-Ariz., submitted a piece in response to Obama's op-ed, the Times rejected it.