Trump vows to boost Christian political power

Donald Trump is repeating his vow to work to boost Christians' political power if he's elected president as he makes his final pitch to Mississippi voters.

The GOP front-runner says, "Christianity is being chipped away."

He says that if Christians could band together, they'd be the country's most potent lobby.

Trump says regulations that limit the political activity of pastors and others who lead tax-exempt organizations "shut Christianity down." He adds that Christians are "really being silenced and we can't let that happen."

Trump was speaking at a rally in Madison, Mississippi.

Republicans in Idaho, Michigan and Hawaii will also be voting Tuesday.