I love your argument. Trump has done all this mud slinging, so now the other candidates get to do it except they have the moral authority.
What Trump is showing is that these candidates are hypocrites and can’t resist a food fight. They simply cannot claim any high ground over Trump. Nice try!
But I'm not claiming any moral authority for anyone. I'm just saying that Trump lacks the moral authority to ask others to stop. And they shouldn't. If Trump.is as tough as he says, it shouldn't bother him anyway.