guatemala city guatemalan economic growth may slow political crisis spark dispute president jimmy morales head u.n. anti-corruption body persist head central bank say thursday central american nation rattle uncertainty since morales sunday try eject ivan velasquez head guatemala international commission impunity cicig face resistance western power friday velasquez attorney general office request morales strip presidential immunity could investigate suspect campaign finance irregularities successful 2015 tilt top job country top court late block morales expel velasquez decision president accept nevertheless dispute continue simmer street protest stag support morales velasquez row negative effect economy far say sergio recinos head central bank carry long time well go impact tell reuters interview morales former comedian elect back popular discontent predecessor otto perez topple 2015 multi-million dollar graft scandal uncover cicig attorney general thelma aldana perez prison stand trial recinos say receive phone call week credit rat agencies international investors mindful happen 2015 could question crisis say economy grow 4.1 percent 2015 recinos add perez scandal immediately hit economy 2016 slowdown 3.1 percent perez crisis must effect add central bank expect guatemalan economy grow 3.0 3.4 percent year cicig already investigate brother son morales suspicion fraud strongly back unite nations european union unite state guatemala political crisis may affect growth central bank