Now Trump questions whether Hillary is really a CHRISTIAN as he tells faith leaders we don't know 'anything about Hillary' and claims she will be 'an extension of Obama'

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Donald Trump tried to sew seeds of doubt into Hillary Clinton's Christian faith as he urged a group of Evangelical leaders to pray to get out the vote, in a new line of attack against his Democratic rival.

The questioning of Clinton's internal religious core represents a new line of attack for the candidate, who usually brands his Democratic rival as 'crooked' and has faulted her for enabling her husband's past infidelity.

Trump told a group of Evangelical leaders he met with in New York that the nation doesn't know 'anything about Hillary in terms of religion.'

He continued: 'She's been in the public eye for years and years. And yet there's no – there's nothing out there. There's like nothing out there.'

Trump told Evangelical leaders the country doesn't know 'anything about Hillary in terms of religion'

Then he compared Clinton to President Obama. 

'It's going to be an extension of Obama,' Trump said Tuesday. 'It's gonna be worse. Because with Obama you had your guard up. With Hillary, you don't and it's gonna be worse.

Trump spearheaded the effort to call on Obama to release his long-form birth certificate, and has questioned over the years whether Obama was really born in the U.S. or was in fact a Christian.

'He doesn't have a birth certificate. He may have one, but there's something on that, maybe religion, maybe it says he is a Muslim,' Trump said on Fox News in 2011. 'I don't know. Maybe he doesn't want that.'

Obama is a Christian who worshiped at Trinity United Church of Christ when he lived in Chicago. 

Clinton attended Great St. Paul Missionary Church in Oakland before the California primary

Lots to pray about: Clinton prays with former New York City mayor David Dinkins in South Carolina in 2008

Clinton has made regular appearances at black churches around the country during the campaign. Here she visits the Greater Imani Cathedral of Faith in Memphis in 2016

Trump also told the faith leaders he wanted them to pray for voter turnout.

'So I think people were saying some of the people were saying lets pray for our leaders. Well, you can pray for your leaders and I agree with that. Pray for everyone. But what you really have to do is you have to pray to get everybody out to vote. For one specific person,' he said.

'We can't be again politically correct and say we pray for all of our leaders, because all of your leaders are selling Christianity down the tubes. Selling evangelicals down the tubes. And it's a very very bad thing what's happening. 

Trump made the remarks at a meeting with evangelical leaders. E.W. Webb, a radio host who ran for lieutenant governor of Virginia, posted video of the remarks. 

Dios Mio: Clinton prays with the rector of Basillica de Guadalupe, Diego Monroy, in Mexico City

Clinton spoke at the Mount Carmel baptist church in St. Louis in 2008

Candle in the wind: Clinton lights at candle a the Cathedral at the Patriarchy in Istanbul, Turkey in 2011

The Clintons worshipped at the Foundry United Methodist Church in D.C. when they were in the White House

Can you hear me now? Clinton addresses the Global Summit on Aids and the Church in 2007 at the Saddleback Church in California

Righteous path: Clinton helps her husband walk down the steps of their Methodist church in D.C. when she was first lady

No justice, no peace: Some religious analysts put Clinton within the social justice movement in the Methodist church 

Clinton told CNN in 2007 that she was 'grounded' in faith but that 'advertising' it doesn't come naturally.

'A lot of the talk about and advertising about faith doesn't come naturally to me. It is something that – you know, I keep thinking of the Pharisees and all of Sunday school lessons and readings that I had as a child,' she said.

'But I think your -- your faith guides you every day. Certainly, mine does. But, at those moments in time when you're tested, it -- it is absolutely essential that you be grounded in your faith,' she added.

She grew up in the Methodist church, and attended a Methodist church in DC when her husband served as president.

Clinton once joked at a faith forum in 2008 that she prayed for 'discernment, for wisdom, for strength, for courage,' an article in ReligionNews.com noted.

He also joked, ''Oh, Lord, why can't you help me lose weight?'

Clinton said in Iowa during her campaign this year, 'I am a person of faith. I am a Christian. I am a Methodist. I have been raised Methodist. I feel very grateful for the instructions and support I received starting in my family but through my church, and I think that any of us who are Christian have a constantly, constant, conversation in our own heads about what we are called to do and how we are asked to do it.' 

Donald Trump led the movement calling for the release of President Obama's long-form birth certificate after questioning his origins

Trump's proposed temporary Muslim ban has drawn controversy during the campaign

'My study of the Bible, my many conversations with people of faith, has led me to believe the most important commandment is to love the Lord with all your might and to love your neighbor as yourself,' Clinton continued, the New York Times reported at the time.

'And that is what I think we are commanded by Christ to do, and there is so much more in the Bible about taking care of the poor, visiting the prisoners, taking in the stranger, creating opportunities for others to be lifted up, to find faith themselves that I think there are many different ways of exercising your faith. 

Trump also announced Tuesday the creation of an Evangelical advisory board to 'provide advisory support to Mr. Trump on those issues important to Evangelicals and other people of faith in America.'

The board is led by former Rep. Michele Bachmann, Jerry Falwell Jr., who endorsed Trump during the primaries, and James Dobson.