sentences:  The president revealed his choice in an announcement, "el destape" (the unveiling), with losing candidates learning only then themselves.Once the "destape" occurred, in general the members of the PRI would demonstrate their enthusiasm for the candidate and their loyalty to the party, known as the "cargada".But the "destape" was also a delicate moment since party unity depended on the losers acceding to the president's choice without public rancor or dissent.