Patrick Kennedy, a former representative from Rhode Island and son of the late Ted Kennedy, warned in a fundraising email for Congressional Democrats that if the U.S. Supreme Court upholds President Obama’s health care law, then “dangerous Tea Party extremists will go on a rampage.”

The fundraising email was sent out Wednesday afternoon, to raise money for the Democratic Congressional Campaign Committee’s “Health Care Rapid Response Fund” ahead of Thursday morning’s expected ruling by the Supreme Court on the constitutionality of the health care law.

“My father, Ted Kennedy, spent his entire political career fighting tooth and nail for universal health care,” the email reads.

It promises that, “If the Court strikes down the law, Democrats will need to redouble our efforts, fighting to ensure universal health care that’s affordable and accessible to every American is a reality.” But predicts, “If the Court upholds the law, dangerous Tea Party extremists will go on a rampage.”

Here’s the full email: