BUDAPEST, March 29 (Reuters) - Hungary is holding up Sweden's admission to NATO because of grievances over criticism by Stockholm of Prime Minister Viktor Orban's policies, the Hungarian government spokesman said on Wednesday. Swedish representatives "have been repeatedly keen to bash Hungary through diplomatic means, using their political influence to harm Hungarian interests", he said, referring to Swedish criticism over the erosion of rule of law by Orban's government in the past 13 years. See here for a complete list of exchanges and delays