The problem with tort reform is not the idea of reducing frivolous litigation, but the fact that most of it isn't targeted at frivolous litigation. The most widely adopted tort-reform measures have been things like damages caps. E.g. the $75-million damages cap that would have applied in the BP oil spill had BP not waived it.[1] But cases where a jury awards a large amount of damages (or high punitive damages) are the least likely to be frivolous.

[1] http://www.sandiegouniontribune.com/sdut-federal-law-may-lim...