Teens erupted into cheers for the first lady as she made an unannounced appearance Monday during a Virginia youth conference. The students gave Melania Trump a standing ovation in her first public appearance since the uproar over the controversial jacket she donned while on her way to visit an immigrant child detention center. The children at the annual Students Against Destructive Decisions (SADD) conference chanted "U-S-A! U-S-A!" when she arrived.