The costs of protecting the state’s top two leaders have more than doubled since Gov. Scott Walker and Lt. Gov. Rebecca Kleefisch won election – a product of the state’s increasingly polarized politics and the changing circumstances of the state’s first family. A top official in the Wisconsin State Patrol and a spokesman for Walker said the increased costs were mostly because of death threats against the Republican governor and lieutenant governor and their families. But Walker’s office also acknowledged that other factors like the increased security for Walker’s two homes and younger family played a role.