The country has heard many threats about repealing and replacing since the ACA took effect in 2014. In the minds of the American people, the law is unstable. Even more so now that we have a Republican president.
Many people are simply not signing up for insurance anymore. This leaves mostly sick people opting into the ACA programs, which means high insurance rates because they are using insurance more.
What this means for you is that your insurance premiums are likely to keep rising.