Article snippet: MORE on Thursday signaled a dramatic shift on guns a day after he held an emotional listening session in the Oval Office with the families of victims and survivors of a mass shooting at a Florida high school. In a torrent of morning tweets, the president for the first time expressed support for a range of policies that will put him at odds with the National Rifle Association (NRA), the powerful gun lobby that spent more than $30 million to help elect him in 2016. Trump said he wants a total ban on bump stocks, the rifle attachment that allow guns to fire like automatic weapons. The president said he supports raising the age of purchase for long guns from 18 to 21 and that he will be “strongly pushing” for comprehensive background checks. “Congress is in a mood to finally do something on this issue – I hope,” Trump tweeted. It’s still unclear just how far Trump intends to go and the policy that seems to energize him the most — arming school officials who have been trained to handle firearms so they can shoot back at potential gunmen — is highly controversial. But the president was clearly moved to action by his meeting with those who experienced the horror of the Marjory Stoneman Douglas High School massacre in Parkland, Fla., which left 17 dead and more than a dozen wounded. “I will always remember the time I spent today with courageous students, teachers and families,” Trump tweeted. “So much love in the midst of so much pain. We must not let them down.” Trump ... Link to the full article to read more