By Steve Holland WASHINGTON (Reuters) - Former President Donald Trump intensified his war with the Republican establishment on Thursday by attacking Karl Rove, a longtime Republican strategist who criticized Trump's first speech since leaving office for being long on grievances but short on vision. "He’s a pompous fool with bad advice and always has an agenda," Trump complained in a statement issued by his office in Palm Beach, Florida. Rove, the architect of Republican George W. Bush's presidential victories in 2000 and 2004, wrote in an opinion article in the Wall Street Journal on Thursday ...