It's one of the on-going 'jokes' at the DUmp, akin to spelling moron with an 'a' (moran). During the terrible terrible times of Pres. Bush Jnr's administration (back when people had jobs) a joke went round the internet which the DUmp loved. Something about a briefing to the President including reference to a Brazilian soldier being killed, and the President asking how many a brazilian is...pretty naff joke, which explains why the DUmp is still telling it years later.