“Follow the money.” That telling phrase, which has come to summarize the Watergate scandal, has been a part of the lexicon since 1976. It’s shorthand for political corruption: At what point do “contributions” become bribes, “constituent services” turn into quid pro quos and “charities” become slush funds?

Ronald Reagan was severely criticized in 1989 when, after he left office, he was paid $2 million for a couple of speeches in Japan. “The founding fathers would have been stunned that an occupant of the highest office in this land turned it into bucks,” sniffed a Columbia professor.

So what would Washington and Jefferson make of Hillary Rodham Clinton? Mandatory financial disclosures released this month show that, in just the two years from April 2013 to March 2015, the former first lady, senator and secretary of state collected $21,667,000 in “speaking fees,” not to mention the cool $5 mil she corralled as an advance for her 2014 flop book, “Hard Choices.”

Throw in the additional $26,630,000 her ex-president husband hoovered up in personal-appearance “honoraria,” and the nation can breathe a collective sigh of relief that the former first couple — who, according to Hillary, were “dead broke” when they left the White House in 2001 with some of the furniture in tow — can finally make ends meet.

No wonder Donald Trump calls her “crooked Hillary.”

A look at Mrs. Clinton’s speaking venues and the whopping sums she’s received since she left State gives us an indication who’s desperate for a place at the trough — and whom another Clinton administration might favor.

First off, there’s Wall Street and the financial-services industry. Democratic champions of the Little Guy are always in bed with the Street — they don’t call Barack Obama “President Goldman Sachs” for nothing, but Mrs. Clinton has room for Bob and Carol and Ted and Alice and their 10 best friends. Multiple trips to Goldman Sachs. Morgan Stanley. Deutsche Bank. Kohlberg Kravis Roberts. UBS Wealth Management.

As the character of Che Guevara sings in “Evita”: “And the money kept rolling in.” And all at the bargain price of $225,000 a pop . . . to say what? We don’t know, because Hillary won’t release the transcripts.

Big Pharma and health-care companies also make the list; they want to keep on the good side of the woman who tried to force HillaryCare down our throats in 1993 and who’s sure to morph ObamaCare into the “single-payer” socialized-medicine model so beloved of “progressives.” So say hello to the National Association of Chain Drug Stores ($225,000) and the Healthcare Information and Management Systems Society ($225,500).

The entertainment industry has an enormous effect on the popular culture, so no surprise seeing the A&E Networks on the list. American Jews donate lustily to the Democratic Party, so throw in the Beth El Synagogue in Minneapolis and the Jewish United Fund of Chicago.

From left to right: Hillary Clinton, Sir Evelyn de Rothschild, Bill Clinton, Lynn Forester de Rothschild.

The United Fresh Produce Association. The National Automobile Dealers Association ponied up $325,000. Even eBay forked over protection money, er, an honorarium. Because taking care of constituents is what the Clintons do — as long as the constituents take care of them.

As “Clinton Cash,” a new documentary based on Peter Schweizer’s 2015 book, shows in excruciating, irrefutable detail, it’s always “pay to play” with the Clintons, whether personally or via their family racket, the Clinton Foundation (which includes the Clinton Global Initiative). They’ve sucked up vast sums of “contributions” from some of the most unsavory folks on the planet, including Nigerian dictators and Kazakhstani despots.

But it’s their parlaying of “public service” by two career “civil servants” into personal enrichment that’s shameless.

Bill Clinton’s speaking fees skyrocketed just days after Hillary’s nomination as secretary of state in 2009. Corporations, such as TD Bank, that had never paid a dime to hear him speak suddenly bellied up to the bar, waving fistfuls of cash. Coincidentally, TD Bank was the largest investor in the Keystone XL pipeline, which needed approval from the new secretary of state. Hillary dodged and weaved and Obama later nixed it — but the Clintons kept the cash. It makes sense to make friends with the woman who might just be the next president. But what does that say about what the office has become?

As Obama has shown, there’s now essentially no limit on the president’s power: He can dictate overtime wages (via executive decree), the forcible integration of the suburbs (via HUD) and even sexually integrate bathrooms (under Title IX). No wonder private companies want to cozy up to the White House. Your business is now the president’s business, if he or she wants it to be.

But, should Hillary attain the White House, you ain’t seen nothing yet. For the Clintons, who once rented out the Lincoln Bedroom, too much doesn’t even approach being enough.

Here’s how much Hillary Clinton was paid for her 2013-2015 speeches:

4/18/2013, Morgan Stanley, Washington, DC: $225,000

4/24/2013, Deutsche Bank, Washington, DC: $225,000

4/24/2013, National Multi Housing Council, Dallas, Texas: $225,000

4/30/2013, Fidelity Investments, Naples, Fla.: $225,000

5/8/2013, Gap Inc., San Francisco, Calif.: $225,000

5/14/2013, Apollo Management Holdings LP, New York, NY: $225,000

5/16/2013, Itau BBA USA Securities, New York, NY: $225,000

5/21/2013, Vexizon Communications Inc., Washington, DC: $225,000

5/29/2013, Sanford C. Bernstein and Co. LLC, New York, NY: $225,000

6/4/2013, The Goldman Sachs Group, Palmetto Bluffs, SC: $225,000

6/6/2013, Spencer Stuart, New York, NY: $225,000

6/16/2013, Society for Human Resource Management, Chicago, Ill.: $285,000

6/17/2013, Economic Club of Grand Rapids, Grand Rapids, Mich.: $225,000

6/20/2013, Boston Consulting Group Inc., Boston, Mass.: $225,000

6/20/2013, Let’s Talk Entertainment Inc., Toronto, Canada: $250,000

6/24/2013, American Jewish University, Universal City, Calif.: $225,000

6/24/2013, Kohlberg Kravis Roberts and Company LP, Palos Verdes, Calif.: $225,000

7/11/2013, UBS Wealth Management, New York, NY: $225,000

8/7/2013, Global Business Travel Association, San Diego, Calif.: $225,000

8/12/2013, National Association of Chain Drug Stores, Las Vegas, Nev.: $225,000

9/18/2013, American Society for Clinical Pathology, Chicago, Ill.: $225,000

9/19/2013, American Society of Travel Agents Inc., Miami, Fla.: $225,000

10/4/2013, Long Island Association, Long Island, NY: $225,000

10/15/2013, National Association of Convenience Stores, Atlanta, Ga.: $265,000

10/23/2013, SAP Global Marketing Inc., New York, NY: $225,000

10/24/2013, Accenture, New York, NY: $225,000

10/24/2013, The Goldman Sachs Group, New York, NY: $225,000

10/27/2013, Beth El Synagogue, Minneapolis, Minn.: $225,000

10/28/2013, Jewish United Fund/Jewish Federation of Metropolitan Chicago, Chicago, Ill.: $400,000

10/29/2013, The Goldman Sachs Group, Tuscon, Ariz.: $225,000

11/4/2013, Mase Productions Inc., Orlando, Fla.: $225,000

11/4/2013, London Drugs Ltd., Mississauga, Canada: $225,000

11/6/2013, Beaumont Health System, Troy, Mich.: $305,000

11/7/2013, Golden Tree Asset Management, New York, NY: $275,000

11/9/2013, National Association of Realtors, San Francisco, Calif.: $225,000

11/13/2013, Mediacorp Canada Inc., Toronto, Canada: $225,000

11/13/2013, Bank of America, Bluffton, SC: $225,000

11/14/2013, CB Richard Ellis Inc., New York, NY: $250,000

11/18/2013, CIIE Group, Naples, Fla.: $225,000

11/18/2013, Press Ganey, Orlando, Fla.: $225,000

11/21/2013, U.S. Green Building Council, Philadelphia, Pa.: $225,000

01/06/2014, GE, Boca Raton, Fla.: $225,500

01/27/2014, National Automobile Dealers Association, New Orleans, La.: $325,500

01/27/2014, Premier Health Alliance, Miami, Fla.: $225,500

02/06/2014, , Las Vegas, Nev.: $225,500

02/17/2014, Novo Nordisk A/S, Mexico City, Mexico: $125,000

02/26/2014, Healthcare Information and Management Systems Society, Orlando, Fla.: $225,500

02/27/2014, A&E Television Networks, New York, NY: $280,000

03/04/2014, Association of Corporate Counsel – Southern California, Los Angeles, Calif.: $225,500

03/05/2014, The Vancouver Board of Trade, Vancouver, Canada: $275,500

03/06/2014, tinePublic Inc., Calgary, Canada: $225,500

03/13/2014, Pharmaceutical Care Management Association, Orlando, Fla.: $225,500

03/13/2014, Drug Chemical and Associated Technologies, New York, NY: $250,000

03/18/2014, Xerox Corporation, New York, NY: $225,000

03/18/2014, Board of Trade of Metropolitan Montreal, Montreal, Canada: $275,000

03/24/2014, Academic Partnerships, Dallas, Texas: $225,500

04/08/2014, Market° Inc., San Francisco, Calif.: $225,500

04/08/2014, World Affairs Council, Portland, Ore.: $250,500

04/10/2014, Institute of Scrap Recycling Industries Inc., Las Vegas, Nev.: $225,500

04/10/2014, Lees Talk Entertainment, San Jose, Calif.: $265,000

04/11/2014, California Medical Association (via satellite), San Diego, Calif.: $100,000

05/06/2014, National Council for Behavioral Healthcare, Washington, DC: $225,500

06/02/2014, International Deli-Dairy-Bakery Association, Denver, Colo.: $225,500

06/02/2014, Lees Talk Entertainment, Denver, Colo.: $265,000

06/10/2014, United Fresh Produce Association, Chicago, Ill.: $225,000

06/16/2014, tinePublic Inc., Toronto, Canada: $150,000

06/18/2014, tinePublic Inc., Edmonton, Canada: $100,000

06/20/2014, Innovation Arts and Entertainment, Austin, Texas: $150,000

06/25/2014, Biotechnology Industry Organization, San Diego, Calif.: $335,000

06/25/2014, Innovation Arts and Entertainment, San Francisco, Calif.: $150,000

06/26/2014, GTCR, Chicago, Ill.: $280,000

07/22/2014, Knewton Inc., San Francisco, Calif.: $225,500

07/26/2014, Ameriprise, Boston, Mass.: $225,500

07/29/2014, Coming Inc., Coming, NY: $225,500

08/28/2014, Nexenta Systems Inc., San Francisco, Calif.: $300,000

08/28/2014, Cisco, Las Vegas, Nev.: $325,000

09/04/2014, Robbins Geller Rudman & Dowd LLP, San Diego, Calif.: $225,500

09/15/2014, Caridovascular Research Foundation, Washington, DC: $275,000

10/02/2014, Commercial Real Estate Women Network, Miami Beach, Fla.: $225,500

10/06/2014, Canada 2020, Ottawa, Canada: $215,500

10/07/2014, Deutsche Bank AG, New York, NY: $280,000

10/08/2014, Advanced Medical Technology Association (AdvaMed), Chicago, Ill.: $265,000

10/13/2014, Council of Insurance Agents and Brokers, Colorado Springs, Colo.: $225,500

10/14/2014, , San Francisco, Calif.: $225,500

10/14/2014, Qualcomm Incorporated, San Diego, Calif.: $335,000

12/04/2014, Massachusetts Conference for Women, Boston, Mass.: $205,500

01/21/2015, tinePublic Inc., Winnipeg, Canada: $262,000

01/21/2015, tinePublic Inc., Saskatoon, Canada: $262,500

01/22/2015, Canadian Imperial Bank of Commerce, Whistler, Canada: $150,000

02/24/2015, Watermark Silicon Valley Conference for Women, Santa Clara, Calif.: $225,500

03/11/2015, eBay Inc., San Jose, Calif.: $315,000

03/19/2015, American Camping Association, Atlantic City, NJ: $260,000

Total: $21,667,000

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