A Trump supporter stands outside the Pennsylvania Convention Center where votes are being counted, Thursday, Nov. 5, 2020, in Philadelphia.
The messages directed Trump fans to converge at a downtown intersection where hundreds of protesters from the opposing candidates’ camps faced off Thursday afternoon.
The texts were sent using phone numbers leased to the text-messaging platform Opn Sesame, said two people familiar with the matter who spoke on condition they not be further identified.
A top Trump campaign official, speaking on condition of anonymity, said the message did not come from the campaign.
The text messages were sent using 13 different phone numbers identified by RoboKiller, a mobile phone app that lets users block text and voice spam, said company vice president Giulia Porter.