If the GOPe passes an amnesty, the Dems will take control of the House and retain the Senate. The GOP’s slavish obedience to their corporate paymasters will help spawn a third party.
If the GOPe passes amnesty, third parties will be irrelevant. Twenty million Mexican voters will create a permanent majority of those who wish to loot America.
Americans will experience the tyranny of the 51%, wherein 51% of the population will ‘vote’ themselves the wealth which belongs to the more affluent (read working or productive) 49%.
Little good a third party will do by then.