nbc news political reporter, perry bacon. so donald trump has also regularly jabbed at rubio's absenteeism for votes in the senate. he responded about missing all those votes, here says. the majority of the job is of being a senator is not walking on to the senate floor and lifting your finger on a non-controversial issue and saying which way you're going to vote. >> jc, you remember the congress. i think you took the response, you're getting paid to do it, putting your little finger up in the air is what voters expect you to do. and for rubio to say, i'm not doing my job, i don't see how that works with voters. if i were trump, i would deck him on this one. you don't think it's important to show up and vote? you took an oath to do it. and now you say, sticking my little finger up in the air is how i do it. your thoughts, jc? >> chris, i understand what the senator is doing. i know he's got to campaign and i don't fault him for that. but i do think people expect you, once you're elected to show up and vote.