The same as some networks did for a while after Trump's "inject bleach" comment: stop carrying his rambling, weaving, lie-filled speeches/press conferences live, and only cover fact-checked highlights of them after the fact.
I figured the speech in December was the last straw. The white house built it up as a major policy address on Venezuela, and it turned out to be a campaign speech. They're setting this one up to be a victory speech on Iran. We'll see.
At one point the networks turned down Obama when he asked for TV time. We may be at that point.
That Time Broadcast Networks Declined to Air President Obama's Primetime Immigration Speech in 2014
Washington Post reported at the time that many networks were wary of interrupting popular shows like "The Big Bang Theory" and "Bones"
www.thewrap.com