But Trump did spend some time on the topic at hand - guns and the Second Amendment.
The judge asked pointed questions about whether prosecutors are trying to get former campaign chairman Paul Manafort to "sing" against the president.
In addressing the gun lobbying group's annual convention, the Republican president will emphasize his support for gun rights in political terms, likely claiming again that Democrats want to take away Americans' firearms, a White House official said.
Pace, like the tens of thousands of gun owners descending on North Texas this weekend, is an avid supporter of the Second Amendment.
She says the NRA is necessary to protect the Second Amendment.
DPD is "a police force that has lost too many heroes, but hasn't lost its will to protect and serve you" Trump said.
But Kyra Parrow, a student at Marjory Stoneman Douglas High School in Parkland, Florida-where a mass shooting in February left 17 dead-was quick to rebut the president's speech on Twitter. "Tragically, there's no sign more inviting to a mass killer than a sign that declares this school is a gun-free zone".
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"It's 2018 now and even a 10-year old knows we're not dealing with muskets anymore", she said.
The president is imploring NRA members to help elect Republicans in the November elections. The shares have climbed since Parkland, which prompted concerns of tighter gun controls.
The campaign is also supported by Giffords: Courage to Fight Gun Violence, the Gun Safety Alliance and The Female Quotient.
Trump's appearance comes after he temporarily strayed from NRA dogma opposing stronger gun control after the deadly school shooting in Parkland, Florida, earlier this year - only to return to the fold. Trump threw his support behind the NRA, which has come under scrutiny amid an ongoing push from gun reform advocates for further restrictions on firearms.
Trump and others in the pro-gun crowd have long held up crime rates in Chicago as evidence that gun control doesn't work. But he said he couldn't get prominent figures on either side of the debate to attend.
"They take a truck and they run over eight people and wound 16 like what happened in NY - and what just happened".
It's the fourth year in a row Trump has addressed the gun rights organization, which was a strong backer of his 2016 campaign. He later backpedaled on that tough talk.
But any streak of independence from the NRA was gone Friday, as Trump allied himself with some of the gun group's biggest priorities in a rambling, 45-minute speech that focused as much on his foreign policy agenda, approval ratings and the latest in the Russian Federation investigation as it did on gun policy.
He has since endorsed more modest proposals, such as legislation aimed at providing more data for the background check system.