Obamacare premiums for midlevel plans will fall by 4% next year, bucking predictions that premiums would soar after the Trump administration and congressional Republicans made changes to the healthcare law.

The drop in 2020 premiums, announced Tuesday, marks the second consecutive year that premiums will go down under President Trump. To go along with the decrease, more insurers are joining Obamacare exchanges, offering customers more options. A total of 175 insurers are offering plans across the U.S., an increase of 20 from the year before.