( CNN) President Donald Trump speak more extensively during the presidential election with his-then attorney Michael Cohen about the proposed Trump Tower project in Moscow than Cohen admitted to Congress last year, Cohen said while pleading guilty Thursday in federal tribunal to a charge from special counseling Robert Mueller's office.

RELATED: Read Michael Cohen's plea agreement

Cohen, who previously said was talking about the Moscow project had ended in January 2016, simply prior to the Iowa caucuses, said he had lied out of a sense of obligation to Trump.

Schiff: If Cohen misled, Trump misled country