Democrats have tucked a lucrative $2.5 billion tax break inside President Biden’s multitrillion-dollar social welfare bill that would benefit the trial lawyers lobby, spurring Republican accusations of political backscratching. The tax break allows trial lawyers working on a contingency basis, meaning they are paid only if a case is settled in their favor, to deduct expenses immediately. Such expenses include hourly labor fees and the expenses associated with waging a lawsuit, such as filing and deposition costs. On average, according to the American Bar Association, the fixed rate for contingency cases is anywhere between 33% and 40% of the total...