Just because he's openly undermining NATO?
The sieg-heils above are examples of terrible gotcha journalism. If you want to make these people look bad, all you have to do is report what they say into the microphone.
Quick convention recap:
A VP pick was announced after Trump realized he couldn't renege.
Opened with a chaotic voice-only "vote" to shut out #NeverTrump.
Delegates from a couple of states walked out.
KKK and WBC throwing urine at each other outside the convention hall.
Multiple examples of plagiarism.
Campaign completely fumbled handling of the plagiarism "crisis".
Speech plagiarist finally found. She is an employee of the Trump corporation, not of the campaign, so if she really did write the speech, several campaign laws have been violated.
No one of consequence is actually willing to speak at the convention.
Cruz not only didn't endorse Trump, he admitted afterward that the personal animosity between them is very strong--so why did the Trump campaign give him a mike?
Trump openly questions NATO, emboldening its enemies.
Did I forget anything?