This is what will happen: Obama will sign the pipeline bill if the Senate promises NOT to stop his executive order concerning illegal immigrant amnesty. Nothing happens by mistake. The media has purposely placed these two, key issues in the forefront for all to see. The GOP actually wants illegals to be "legalized" for cheap labor and for the fees and taxes they'll be able to collect as a result. And the shell game continues.
How can the Senate stop an Executive Order? Hint: They can't!
It seems to me that the one that legalizes 5 million illegal immigrants (that would be Obama) would be the one wanting cheap labor and the fees and taxes they will collect. But, that is just me.