this is a name aoc the group of congresswomen probably that will be invoked a lot by trump and republicans in 2020. >> yeah, donald trump's political tactics from the moment he announced has been an us versus them and his current them is this group of democratic congresswomen of color. and it is in his interests apparently for him to continue to attack them. and look, ocasio-cortez is also gaining traction from striking back. today there was a curious moment where he was sending out this e-mail. her campaign was e-mailing out the fact that he'd been texting about her. look, it is unlike -- uncommon for a group of freshman congresswomen to get this much attention from a president seeking re-election. >> it's attention that duns look like it's going to fade out certainly before election day 2020. eliza collins, shane goldmacher, thank you both for your time tonight. that is our broadcast for this tuesday night. thank you for being with us and good night from nbc news headquarters in new york. ♪