Betting company Ladbrokes has slashed the odds of Donald Trump being replaced as the Republican candidate, from 16/1 to 6/1, following a bad week of campaigning.

Trump is still taking a lot of criticism for his insinuation that Ghazala Khan — the mother of an American Muslim soldier killed on duty — was being quiet while her husband spoke at the DNC because she was not allowed to talk.

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Nathaniel Persily, Stanford law professor, told the Daily Beast the Republican National Committee could replace Trump with a vote of No Confidence and re-nominate a person with a majority vote — not necessarily Pence, the VP candidate.

However, Persily said that with the bureaucratic nightmare of the state ballot and electoral college that would follow any such vote, Republicans are very unlikely to bother unless Trump chooses to drop out.