NEW: Trump lawyer Alan Dershowitz argues in the impeachment trial that a quid pro quo that benefits the president politically is fine because all politicians believe their elections are in the public's interest, and therefore, he has no corrupt motive.

NEW: Trump lawyer Alan Dershowitz argues in the impeachment trial that a quid pro quo that benefits the president politically is fine because all politicians believe their elections are in the public's interest, and therefore, he has no corrupt motive. https://t.co/tc2aaqG4KO

— MSNBC (@MSNBC) January 29, 2020