President Trump is trying to turn back the clock on the Obama era, even as he has been frustrated by the slow pace of progress on his legislative agenda.

In a 24-hour period beginning Thursday evening, Trump took aim at former President Obama’s major domestic and foreign policy achievements — the Affordable Care Act, also known as ObamaCare, and the nuclear deal with Iran.

In both cases, he began hollowing out his predecessor’s accomplishments — in the first instance by announcing he would end government subsidies for insurers, and in the other by refusing to certify that Iran was in compliance with the terms of the 2015 agreement.

Those moves by Trump can be added to a lengthy list of actions aimed at unpicking the Obama legacy.