Tort = legalese for "wrongful act" like, e.g., injuring somebody in a car wreck or them slipping on your sidewalk. They sue you in an action in tort.
Their lawyer probably signs them up on a contingency fee basis where they neither pay any expenses nor lawyer's fees. The lawyer usually gets around 40% of what "the injured party" wins or settles for.
Since the plaintiff suing you has no expenses even if YOU win, there's no impediment to him suing you. It's all the lawyer's guess on whether he can make money championing the injured party.
Tort reform is a hot button issue to make such lawsuits more onerous for casual plaintiffs and lawyers who really stretch the facts to squeeze money out of defendants' insurance companies.
The "reform" part of it would better be termed "change", and businesses want it because of the exhorbitant punitive damage judgments that come from tort cases.
It all loops around to average citizens, those serving on juries. Remember the elderly lady who spilled coffee on herself as the car she was riding in left a McDonalds? Whose fault? Hers and the driver's. A jury, however, awarded her something like $5 million! If jurors collectively had the sense of a goat, they's say "your fault lady, you pay the legal fees for bringing this ridiculous claim." They can on the first point, but they can't on the second.
There isn't any specific plan to reform actions in tort, but many are pretty sure changes should be made.