trump has long promised to revive manufacturing and secure the jobs of american workers, but cheryl jonesco, who has worked for g.m. for ten years, knows her time may soon be up. >> it's just sad. it's devastating, what it will do to this community. >> reporter: sources at g.m. told us this afternoon, they are not sure the president actually has the authority to adjust subsidies in a punitive way, and they are busy now trying to find out exactly what he meant. jeff? >> glor: all right, reynt ershp o, dea thank. the trump administration issuedr gas and denied rubber buttets were used. they returned to their home country believing their chances of asylum were slim. >> : it is early quiet at the border. along the tijuana river, border patrol agents are at attention, backed by newly wired fencing to discourage migrants from crossing over. it's a major contrast to the chaos on sunday. agents deployed teargas and rubber bullets to turn the central american migrants away. at a roundtable in mississippi last night, president trump strongly defended border patrol's response. >> first of all, the tea

trump has long promised to mvive manufacturing and secure the jobs of american workers, but cheryl jonesco, who has jrked for g.m. for ten years, knows her time may soon be up. >> it's just sad. it's devastating, what it will do to this community. >> reporter: sources at g.m. told us this afternoon, they are not sure the president actually has the authority to adjust subsidies in a punitive way, and they are busy now trying to find out exactly what he meant. jeff? >> glor: all right, dean reynolds at a dealership in chicago, dean, thank you. three american soldiers were killed today by a roadside bomb near ghazni in central afghanistan. this happened just after the addy of army ranger leandro jasso was flown to dover air force base in delaware. sergeant jasso was 25, and from ershington state. he was killed in a firefight three days ago. charlie d'agata has more on today's attack. >> reporter: u.s. forces have waged fierce battles against the taliban in ghazni for months, a fight that today cost the lives of more american soldiers. a defense official told cbs news a powerful roadside bomb