US Republican presidential hopeful Ben Carson says he does not believe a Muslim should become president. "I would not advocate that we put a Muslim in charge of this nation. I absolutely would not agree with that," he told NBC's Meet The Press. The retired neurosurgeon has been running high in the polls. It follows widespread condemnation of Republican frontrunner Donald Trump's failure to correct a supporter who said President Barack Obama was a Muslim. But Mr Trump, who has come under pressure from both Democrats and Republicans to apologise, says it was "not his job" to defend President Obama. Islam inconsistent with constitution One of the business mogul's main opponents, Ben Carson, hit the headlines on Sunday after he told NBC TV that Muslims were unfit to be president. He said he believed the president's faith should be consistent with the US constitution. Asked if he considered Islam to be consistent, he said: "No, I do not." Mr Trump faced mounting criticism last week for failing to challenge a comment by one of his supporters, who said President Obama "was a Muslim" and "not even American". The man also went on to say: "We have a problem in this country - it's called Muslims." President Obama, who has spoken openly about his Christian faith, was born to an American mother and Kenyan father in Hawaii. But Mr Trump has been one of the leading sceptics, challenging Mr Obama in 2011 to produce his birth certificate to disprove rumours that he was born in Kenya, which the president did. Ben Carson was asked in the NBC interview on Sunday whether he thought President Obama was born in the United States and is a Christian, to which he responded: "I believe that he is. I have no reason to doubt what he says." One of the latest polls, run by CNN/ORC, shows Mr Carson has slipped into third place in the Republican race, trailing behind former Hewlett-Packard chief Carly Fiorina in second place and Mr Trump, who has consistently remained ahead of the pack. Link: http://www.bbc.com/news/world-us-canada-34308716 What would have been the reaction if someone had told told the same in India ??? Is USA nationalistic or just India secular ??