Modifies provisions relating to election oversight

HB 638 allows political parties to designate voter challengers at polling places and absentee ballot counting locations. These challengers, who must be registered voters in the jurisdiction, can observe voting and ballot counting but may only challenge suspected election law violations after reporting to election judges. The bill requires parties to submit challenger names to election authorities four business days before an election, with replacements allowed if qualifications aren't met. Challengers cannot share voter lists that reveal vote counts, and their challenges must follow specific reporting procedures to election officials.