From Each According To His Ability, To Each According To His Needs -- Looks Like Bernie, Beto, Biden Have Lots Of Needs --- April 21, 2019.

From an undisclosed site:

Their tax returns revealed that each of the Democratic candidates gave an embarrassingly low percentage of their sizable income to charity in recent years. Massachusetts Sen. Elizabeth Warren won the title as most charitable, giving a whopping 5.5 percent of her household’s $906,000 income to charity in 2017. 

In second place is Washington Gov. Jay Inslee, who, along with his wife, gave 4 percent of their income in 2017. 

New York Sen. Kirsten Gillibrand and her husband contributed 2 percent of their $215,000. 

Minnesota Sen. Amy Klobuchar contributed 1.9 percent out of $338,500, while California Sen. Kamala Harris contributed just 1.4 percent out of $1.9 million.

Vermont Sen. Bernie Sanders just became a millionaire in 2016, raking in $1,073,333. Yet he gave only $10,600 to charity — less than 1 percent of his income. He upped his generosity in 2017 and 2018, donating an "impressive" 3 percent. [Once one announces a presidential run, this percentage always increases.]

Finally, Beto O’Rourke and his wife gave 0.3 percent of their $366,455 to charity in 2017. Good news: that’s up from 0.2 percent in 2016.

Don’t worry, though, O’Rourke’s campaign team has announced they are busy looking for the “thousands of dollars” of charitable giving that weren’t, for some reason, reflected on his tax returns. The American people anxiously await their excavation.

Beto, Beto, Beto. What gives?

However, I've always said that true charity is not reflected on IRS filings.