Obama is the 'founder' of Isil and Clinton the 'co-founder' - Trump
Donald Trump went on the offensive yet again on Wednesday night, stating that President Barack Obama was the "founder" of the Isil terrorist group.
In an extraordinary attack on the commander-in-chief, the Republican presidential nominee said that the terrorists "honour" Mr Obama.
He used the president's full name - Barack Hussein Obama - which is a tactic used by opponents of Mr Obama to imply he is a secret Muslim.
"In many respects, you know, they honour President Obama," Mr Trump said at a campaign rally outside Fort Lauderdale, Florida.
"He is the founder of Isis," he said, repeating the claim three times.
He has previously accused his presidential rival, Hillary Clinton, the former secretary of state, of being responsible for Isil, but on Wednesday night said that "crooked Hillary Clinton" was actually the group's "co-founder".
"And I would say," he continued, "the co-founder would be crooked Hillary Clinton. Co-founder! Crooked Hillary Clinton! And that's what it's about!"
The crowd chanted "lock her up" in agreement.
Mr Trump has regularly taken aim at Mr Obama and Ms Clinton for pursuing Middle East policies that critics claim created a power vacuum in the region that was exploited by Isil.
He criticised the withdrawal of US troops from Iraq that was completed under Mr Obama in 2011, claiming "he made a mess".
"We should never have gotten out the way we got out," he said.
"We unleashed terrible fury all over the Middle East.
"Instead of allowing some small forces behind to maybe, just maybe, keep it under control, we pulled it out."
The White House declined to comment on Mr Trump's latest claims.
In June, when a shooter who claimed allegiance to Isil killed 49 people at a nightclub in Orlando, Florida, Mr Trump seemed to suggest that Mr Obama was sympathetic to the group when he said the president "doesn't get it, or he gets it better than anybody understands".
On Wednesday night he said: "People don't like saying [radical Islamic terrorism]. Our president refuses to use the term. Every time another event happens, I keep saying, 'I wonder if he's gonna say it this time.' And he doesn't say it."
"And Hillary won't say it either," he said.
"She doesn't wanna say it, cause she doesn't wanna offend the president, because then bad things could happen to her if she offends the president. Bad things could happen to her.
"So she's afraid to say it. Hillary's afraid to say it. [If] she did say that she would say it because of me, but she's afraid to say it.
"But we have a real problem with radical Islamic terror. It's what it is. It's terror."
In the past, Mr Trump has also falsely suggested that Mr Obama was a Muslim or was born in Kenya, where the president's father was from.
Mr Obama is a Christian, who was born in Hawaii.