It's Still 2016 for Bernie Sanders and Donald Trump, Who Can't Stop Fighting

Bernie Sanders (I-Vt.) at Capitol Hill on September 13. Sen. Sanders held an event to introduce the Medicare for All Act of 2017. Reuters

Vermont Senator Bernie Sanders has hit out at Donald Trump's criticizing his healthcare bill as "a curse," telling the president in no uncertain terms what he thought of the opposition to his Medicaid for All bill.

The president on Thursday slammed Sanders's single-payer healthcare plan, taking to Twitter to pledge he would veto the move. "Bernie Sanders is pushing hard for a single payer healthcare plan - a curse on the U.S. & its people," Trump wrote.

"I told Republicans to approve healthcare fast or this would happen. But don't worry, I will veto because I love our country & its people," he added, referencing his own failed healthcare bill, an attempt to repeal and replace Obamacare.

Sanders took his own shots at the president, stating providing universal healthcare was exactly what should be happening. "No Mr. President, providing health care to every man, woman and child as a right is not a curse, it's exactly what we should be doing," Sanders wrote in reply to Trump's tweet. "What is a curse is your support for throwing 23 million off health insurance. That's the curse and we won't allow you to get away with it."

Sanders spoke of his desire to see health care made available to everyone in the country during his campaign, although he has acknowledged that his single-payer system (similar to that used by the U.K., France and Australia) is unlikely to pass through Congress.

"Health care must be recognized as a right, not a privilege," Sanders argued on his website in the push for Medicaid for All. "Every man, woman and child in our country should be able to access the health care they need regardless of their income. The only long-term solution to America's health care crisis is a single-payer national health care program."

The Trump administration has criticized Sanders's plan before. White House Press Secretary Sarah Huckabee Sanders said Wednesday as Sanders unveiled his bill: "I can't think of anything worse than having government be more involved in your health care instead of less involved."