An Indiana Senate panel is slashing a proposed funding increase for a program that provides state-funded preschool to poor children, jeopardizing a campaign promise made by Republican Gov. Eric Holcomb. The GOP-dominated Senate Appropriations Committee endorsed the move Thursday to sharply curtail the governor’s modest request for $10 million a year in additional funding. An amendment brought by committee Chairman Luke Kenley cuts the increase to just $3 million a year.