US President Donald Trump has signed an order to make it easier for Americans to buy bare-bones health insurance plans, using his presidential powers to undermine Obamacare after fellow Republicans in Congress failed to repeal the 2010 law.
Trump issued the executive order on Thursday aimed at letting small businesses band together across state lines to buy cheaper, less regulated health plans for their employees with fewer benefits.
However these new insurance options may not be available until 2019, and the order could face legal challenges from Democratic state attorneys general.
It was Trump's most concrete step to undo Obamacare since he took office in January promising to dismantle Democratic former President Barack Obama's signature domestic policy achievement.
Senate Democratic leader Chuck Schumer accused Trump of "using a wrecking ball to single-handedly rip apart our healthcare system."
"Having failed to repeal the law in Congress, the president is sabotaging the system," Schumer said.
The House of Representatives in May passed Republican legislation to gut Obamacare. But attempts by Senate Republicans to repeal and replace Obamacare failed in July and September, in part because the proposed legislation would have caused millions of Americans to lose healthcare coverage.
Republicans call Obamacare, which extended health insurance to 20 million people, a government intrusion into Americans' healthcare, and have been promising for seven years to scrap it.
Trump's order weakens Obamacare in part by giving people more access to plans that do not cover essential health benefits such as maternity and newborn care, prescription drugs, and mental health and addiction treatment.
Obamacare, known formally as the Affordable Care Act, requires most small business and individual health plans to cover those benefits.
"The cost of the Obamacare has been so outrageous, it is absolutely destroying everything in its wake," Trump said at a White House signing ceremony.
Trump's order was aimed at making it easier for small businesses to join together as associations across state lines to buy cheaper, less regulated health plans.
When buying as a large group, these associations can decrease their risk of having a large proportion of members with expensive illnesses, which can drive up costs for small employers. The White House also said that it gives employers more leverage to negotiate with insurance companies in purchasing health insurance plans for employees.
The order also sought to change an Obama-era limit on the time span people can use short-term health insurance plans, which are cheaper but cover few medical benefits. Those plans are currently limited to three months.
Trump said Thursday's move was "only the beginning" and that his administration would take additional steps to repeal and replace Obamacare once and for all.