Squad Rep. Alexandria Ocasio-Cortez, who’s under investigation for blowing campaign cash on a shrink who specializes in ketamine therapy, spent big on the doctor last quarter, new records showed. The socialist lawmaker who reps parts of Queens and the Bronx allegedly violated election and ethics rules by  misusing nearly $19,000 in campaign cash  last year on Dr. Brian Boyle, according to watchdog complaints filed last month with the Federal Election Commission and Office of Congressional Conduct. AOC’s campaign paid Dr. Boyle nearly $19,000 last year, prompting a federal complaint to investigate the charges. Getty Images New FEC quarterly filings reveal the controversial expenses continued this year, with AOC’s campaign paying $4,550 to Boyle on Jan. 12. While the lawmaker continues to refuse to say why she is paying him, the Harvard-trained shrink calls himself an “interventional psychiatrist” specializing in unorthodox methods for treatment-resistant depression, PTSD and anxiety.…