well, let me ask this question: what happens if he runs anyways?
"he can't run if you ban him", you say.
but, what if he decides that he doesn't fucking care about your bullshit ban and runs anyways?
and, what if he wins?
then what?
go ahead and impeach him. fine. but, it's not a good idea to use congress to determine who can or cannot run for office, and i'd stand with anybody rejecting the power of congress to do such a thing, on principle - even donald trump.
the people of the united states decide who the president is, not the speaker of the house or the senate.