Trump has repeatedly claimed the Affordable Care Act is unconstitutional, and said he would appoint justices to the Supreme Court who would strike it down. A vote for anyone on Trump’s short list would be a vote to gut the ACA.

Trump said his judicial appointments would rule against the Affordable Care Act.

“If I win the presidency, my judicial appointments will do the right thing unlike Bush's appointee John Roberts on Obamacare.” – Trump, 2015

Trump said the Affordable Care Act was “not legal” and “clearly unconstitutional.”

“It's clear that Obamacare was not legal either.” – Trump, 2013

“So you paid for the privilege of not buying healthcare. We got rid of it in the tax cut plan. Big thing. Big thing. That was so unconstitutional, but that was the worst part of Obamacare.” – Trump, on the individual mandate, 2018  

The Trump administration asked a federal court to rule critical pieces of the Affordable Care Act unconstitutional.

“Responding to a lawsuit from conservative states seeking to invalidate the Affordable Care Act, the Justice Department told a judge in Texas on Thursday that Congress’ decision to repeal the penalty for failing to buy health insurance renders unconstitutional other Obamacare language banning insurers from charging people more or denying them coverage based on a pre-existing condition.” – Politico

Trump repeatedly attacked Justice Roberts for upholding the Affordable Care Act.

“I think Justice Roberts did a very dishonorable thing. I think what he did was dishonorable because there was no justification for he what did. His decision didn't even make sense.” – Trump, 2012

“Everybody liked Justice Roberts, turned out to be a disaster because of Obamacare. He could have killed it twice, and he turned out to be a total disaster, so…” – Trump, 2016

“Ted Cruz, along with Jeb Bush, pushed justice John Roberts onto the Supreme Court. Roberts could have killed Obamacare twice, but didn't!” – Trump, 2016

“Remember, Cruz And Bush gave us Roberts who upheld #ObamaCare twice! I am the only one who will #MAKEAMERICAGREATAGAIN!” – Trump, 2016