The extended process of electing a House speaker last week put Republicans' internal divisions on public display. Democrats and leadership-aligned Republicans had ample opportunity to attack or mock the band of holdouts, many affiliated with the House Freedom Caucus, who prevented Kevin McCarthy from becoming speaker until the 15th round of balloting. But for all their grandstanding, the holdouts have a point about how Republicans fail to deliver on their government-cutting promises—which portends more conflict ahead, as I explain in today's column for Bloomberg Opinion.