First of all doesn't it concern you that the IRS is inserting itself into a political debate without apparently any prompting?
Second if Trump's returns are being audited then the returns he has aren't the final returns. The returns aren't complete until the audit is done.
Third if Cruz and Obama's IRS are teamed up against Trump then Trump is DEFINITELY the one we want in office.
Trump, at first, said he couldn't release his taxes because the IRS was auditing him. He put the blame on the IRS. Trump, himself, prompted the IRS to chime in. They've said they are not stopping him from releasing his returns.
He's hiding something and his supporters here are in full Cover Trump's Ass (CTA) mode.