President Trump's Former Lawyer Michael Cohen Sentenced to Three Years in Jail Back in August, Cohen pleaded guilty to tax fraud, lying to banks and violating campaign finance laws. He also pleaded guilty last month to lying to Congress about a failed deal to build a Trump Tower in Moscow. That case was lodged by Robert Mueller, who said Cohen went "to significant lengths to assist the Special Counsel's investigation." The three-year sentence is on the low end of what prosecutors had suggested for Cohen's crimes. He is due to surrender to prison on March 6, 2019. The president hasn't been charged but Cohen's admissions leave open the possibility that Trump could face prosecution particularly once he leaves the White House.