MIAMI — Prosecutors have subpoenaed records related to a $600,000 money transfer between dark money organizations tied to an ongoing Miami-Dade criminal case surrounding “ghost candidates” in the 2020 election, according to court records unveiled Friday. The transfer is adding a new layer of intrigue to a years-long question into who paid for thousands of political mail advertisements to promote sham no-party candidates in three contested Florida races that were key to helping solidify the Republican majority in the state Senate. While the source is not yet clear, the money transfer shows pros…