Donald Trump Jr., son of President Donald Trump, ridiculed Sen. Elizabeth Warren (D-Mass.) on Twitter Saturday for what he believed was a hypocritical tweet.

Following the GOP's decision to pull their Obamacare replacement bill within minutes of a scheduled full House vote Friday afternoon, Warren tweeted: "Today is a great day for the people of Massachusetts & people across the country who depend on the Affordable Care Act."

She added: "But I'm not doing a touchdown dance today. Not when the GOP is still hell-bent on rigging the system for the rich & powerful."

The second tweet is where Trump Jr. found the hypocrisy, particularly Warren's accusation that Republicans are "hell-bent on rigging the system for the rich & powerful."

Warren, according to financial disclosure forms that lawmakers are required to file, has a net worth that puts her in the top 1 percent of Americans in terms of wealth. This despite the fact that she and her colleagues regularly slam rich Americans for being too "rich and powerful" and not paying their "fair share."

In fact, she was even paid a massive salary by Harvard in 2010 — a whopping $430,000 — to teach a bankruptcy law class. Those facts are what Trump Jr. ripped Warren for.

In reply to Warren's tweet about the "rich & powerful," Trump Jr. said: "Ha, you mean like someone who was paid almost $500,000.00 to "teach" one class a semester at Harvard?"

He added the hashtag "#DoAsISayNotAsIDo."

Burn.