Donald Trump’s former fixer has some sobering advice for Peter Navarro as he prepares for his first night behind bars: prison is “no cakewalk”. Trump’s one-time attorney and fixer Michael Cohen — who notoriously served time behind bars for tax evasion, making perjurious statements and campaign finance violations — appeared on CNN’s “Out Front” to warn the ex-president’s former aide Navarro about what’s in store. Navarro reported to a prison in Miami Tuesday after being convicted of contempt of Congress for ignoring a subpoena to appear before the January 6 committee. Want more breaking politic…