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INDIANAPOLIS (CBSMiami/AP) — Donald Trump has chosen Indiana Gov. Mike Pence as his running mate in the election for president, sources have told CBS News.

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Pence, 57, is a steady, staunch conservative who would help calm nervous Republican wary of Trump’s impulsive style. He served six terms in Congress before becoming Indiana governor. He also has deep ties to evangelical Christians and other conservatives, particularly after signing a law last year that critics said would have allowed businesses to deny service to gay people for religious reasons.

Trump took notice of Pence during the Indiana primary, noting that the governor had high praise for him despite endorsing one of his rivals.

“Pence helped Mr. Trump with conservatives in his party,” said CBSNews Political Director John Dickerson. “He has that Washington connection.”

Pence is seen as a more reserved choice to balance out the ticket, as opposed to contenders Newt Gingrich and New Jersey Gov. Chris Christie, both known for strong personalities.

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“Pence’s executive experience as governor allows him to step into the presidential role but his lack of an attack dog reputation may not be that much of a deficit given Donald Trump’s talents in that area,” said Dickerson.

Pence also helps Trump shore up support with conservatives.

“The key there is conservatives who are concerned about Donald Trump once he got in office, who would kind of keep him in touch with the conservative ideals and socially conservative views and beliefs? The idea is that Pence would be,” Dickerson said.

The Trump campaign has not made an official announcement. That’s expected to come on Friday at 11 a.m.

Others in consideration for the position were Newt Gingrich, New Jersey Gov. Chris Christie and Alabama Sen. Jeff Sessions.

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