Different times call for different leadership: Pence in US presidential bid

Former Vice President Mike Pence promised the best days of the greatest nation on earth are yet to come" in a video released on Wednesday formally launching his campaign for the Republican nomination for president.

Different times call for different leadership, Pence says in the video, released via Fox News and Twitter hours ahead of a kickoff event in Des Moines.

Today our party and our country need a leader that'll appeal, as Lincoln said, to the better angels of our nature."

While it would be easy to stay on the sidelines, he adds, that's not how I was raised. That's why today, before God and my family, I'm announcing I'm running for president of the United States.

Pence is staking his presidential hopes on Iowa as he launches a campaign that will make him the first vice president in modern history to take on his former running mate.

Pence's campaign will also test the party's appetite for a socially conservative, mild-mannered and deeply religious candidate who has denounced t