Massachusetts Sen. Elizabeth Warren has been caught in a number of stunning lies and hypocritical statements in the past few years.

This new report, though, may be the most embarrassing.

A scathing new study has discovered that Warren’s liberal credentials are all a lie. Despite Warren pandering to women voters over the so-called “gender wage gap,” it turns out she’s the worst kind of offender.

April 4th is called “equal pay day” — and critics of Warren used the day to release some seriously bad news for Warren.

The Massachusetts liberal was exposed paying her female staffers 71% of what she pays her male staffers on average — nearly 10% worse than the national average.

“The median annual earnings for women staffers, $52,750, was more than $20,000 less than the median annual earnings for men, $73,750, according to the analysis of publicly available Senate data,” The Washington Free Beacon reported Tuesday. “When calculated using average salaries rather than median, the pay gap expands to just over $26,051, or about 31 percent.”

Now look at Warren’s tweet from 2016 on “equal pay day” —

#EqualPayDay isn’t a national day of celebration. It’s a national day of embarrassment.

— Elizabeth Warren (@SenWarren) April 12, 2016

We wonder how leftist women voters will respond to the news that Warren is one of the biggest offenders?

The timing couldn’t be worse for Warren, who is reportedly battling against bad polling numbers in her senate reelection campaign — according to local station WBUR, only 44 percent of voters in Warren’s district believe she deserves to win.

Of course, most economists argue the so-called “gender wage gap” is a liberal fantasy used for political purposes, and that such a thing doesn’t actually exist.

Prager University and the American Enterprise Institute released a video in 2014 that debunked the myth —

— The Horn editorial team