Despite President Donald Trump's vows to dismantle the Affordable Care Act, or Obamacare, former House Speaker John Boehner says that's "not going to happen."

The idea that any repeal and replace plans would move quickly through Congress is "happy talk," Boehner said at a health care conference Thursday, adding it's more likely Republicans will just end up making smaller changes to the law, Politico reported. 

"Most of the framework of the Affordable Care Act ... that's going to be there," said Boehner, a noted opponent of the healthcare plan before stepping down in 2015

The former congressman's comments come at a time when more Americans approve Obamacare, and as President Trump plans to unveil his replacement plan.

Trump said last weekend that his administration's replacement for "the disaster known as Obamacare" will be coming in the next few weeks.

He didn't offer many details on that plan, other than this: "Just so you understand, our plan will be much better healthcare at a much lower cost. OK? Nothing to complain about." 

But since Trump's inauguration last month, the ACA's popularity is rising. The latest Politico/Morning Consult poll finds 45 percent of registered voters say they approve of Obamacare, 4 percent more than since early January.