Several Republicans have jumped ship this week and backed Hillary Clinton for president over Donald Trump, but now, the Manhattan billionaire may have taken a step to try and mend fences. Josh Robin filed the following report.

Donald Trump was back in Iowa with a warning.

"I'll tell you what. If we don't pull this off, I'm blaming Iowa," he said.

He was kidding. Maybe.

After all, Iowa is where it got started. Trump narrowly lost, but his political victories soon began.

Now, it's the general election, and Trump is not poised to win.

His missteps may be too numerous to recount here, but criticism includes temperment, preparedness and that he hasn't unified his party.

Friday, the closest he came to fixing that final point was a nod to the Republican chairman.

"Reince Priebus is doing a fantastic job. He really is. He's a fantastic guy," Trump said.

Later Friday, Trump finally endorsed the House speaker, Paul Ryan. His previous refusal reportedly infuriated Priebus.

So infuriating to Republicans is that they see Trump's opponent as so beatable, especially with headlines continuing over Hillary Clinton's use of a private email server as secretary of state.

Friday, Clinton, in a rare question-and-answer session with the press, tried to clear up a recent interview.

"So I may have short-circuited, and for that, I will try to clarify," said.

She had said FBI Director James Comey "said my answers were truthful, and what I've said is consistent with what I have told the American people."

Comey actually wouldn't verify what Clinton said publicly, only on her testimony to the FBI.

Clinton's response now?

"What I told the FBI, which he said was truthful, is consistent with what I have said publicly," she said.

But Friday, Clinton appeared to continue mischaracterizing the FBI director.

"Director Comey said there was absolutely no intention on my part to either ignore or in any way dismiss the importance of those documents."

Actually, Comey said, "Although we did not find clear evidence that Secretary Clinton or her colleagues intended to violate laws governing the handling of classified information, there is evidence that they were extremely careless."

Clinton says using a private server was a mistake. She wasn't charged.

Trump continues using the issue to attack her. With concerns about him so numerous, it may not ultimately matter.