Well, here's a layman's explanation...if a ruling is made, by say, a judge, it can be appealed in court, and ruled upon, and then further appealed, and it goes to a state's supreme court, who can kick it back down to a lower court, or make a ruling upon it. Federal level is the same...district courts rulings can be challenged or appealed, and eventually issues end up at the supreme court who make federally binding rulings. Think legalizing gay marriage....something that never passed in congress and sure never would have passed in 50% or more of states, was ruled upon by SCOTUS, and then, BAM, law. Well, these judges are basically now saying "we don't like their pro-trump decision, so, we'll ignore it".
A very, very slippery slope, and immediate imo.