President Trump’s reelection campaign will be flying a banner attacking socialism in Houston on Thursday, shortly before Democratic presidential candidates take the debate stage there. An official with the campaign told ABC News that the group plans to fly a banner that reads, "Socialism will kill Houston's economy,” from 2 p.m. to 6 p.m. The third Democratic presidential debate is scheduled to begin an hour later. The campaign also plans to take out two full-page advertisements in local newspapers taking aim at Sen. Elizabeth Warren (D-Mass.), former Vice President Joe Biden and former Housing and Urban Development (HUD) Secretary Julián...