>> reporter: and the trump administration's refusal to hand over any documents to impeachment investigators. >> no documents, zero. >> reporter: impeachment managers set the stakes arguing the president abused his power when he attempted to withhold a white house meeting and security aide unless ukraine pursued investigations into joe biden in 2016 and claiming everything that came after that was an attempt to cover his tracks and obstruct congress. they warned senators that trump's behavior was part of a pattern, once again using his own words against him. >> then i have an article ii where i have the right to do whatever i want as president. >> reporter: and they cautioned of the consequences if congress failed to intervene. >> do you think if we do nothing it's going to stop now? >> reporter: senators who are supposed to listen quietly to the lengthy proceedsin ings hav taken to passing notes, one senator snuck in a cell phone but at points they fell silent