WASHINGTON (AP) — Once again, Donald Trump isn't backing down from comments that have inflamed the Republican presidential race.

At an Iowa GOP forum Saturday, Trump dismissed Arizona Sen. John McCain's reputation as a war hero, saying McCain was merely captured in Vietnam and "I like people who weren't captured."

That's caused an uproar. But Trump isn't repentant.

On ABC's "This Week," Trump insists: "I will say what I want to say."

And in a statement, Trump says he has a strong record of supporting veterans and politicians such as McCain have failed veterans.

Trump shook up the race weeks ago when he branded immigrants from Mexico as rapists and drug dealers.

Several GOP rivals have upbraided him for his remarks on McCain.

Jeb Bush says of Trump: "Enough with the slanderous attacks."