evidence: President Trump said that, politically, the best thing to do would be to let the Affordable Care Act (ACA) "explode." This timeline tracked Trump Administration actions to sabotage the ACA by destabilizing private insurance markets or reversing the law’s historic gains in health coverage. [...] July 29 After Senate Republicans fail to pass a bill to repeal or replace the ACA, President Trump takes to Twitter to threaten that he will stop making CSR payments to insurers. Trump falsely calls these payments a "bailout." Actually, the ACA requires the federal government to make these payments to compensate insurers for reducing deductibles and copayments for low- and moderate-income marketplace enrollees. Ending the payments would hike premiums in the individual market for many consumers, raise federal marketplace costs, and likely cause some insurers to withdraw from the marketplaces. The renewed threat comes just two weeks before the deadline for insurers to finalize their premium rates for 2018 marketplace plans. [...] Shortly after President Trump’s inauguration, he issues an executive order directing federal agencies to use their administrative powers begin dismantling the Affordable Care Act "to the maximum extent permitted by law." The order instructs agencies, for example, to do what they can to grant exemptions or delay implementation of ACA provisions that impose a tax, fee, or other costs and to encourage development of a "free and open market" in health care services among states, while Congress works to pass repeal legislation.