Senator Ted Cruz, is standing for the principles that got him elected.
On Tuesday, he made the proclamation that in his effort to defund Obamacare he would speak "until I am no longer able to stand."
He is on a mission against Barack Obama’s health care law and the potential government shutdown it could create.
However, his appearance on the Senate floor hasn’t done anything to block the Affordable Care Act yet, the vote is still scheduled for Wednesday.
But Cruz says the motivation behind his speech is simply to "make D.C. listen." You can watch a live stream of Senator Cruz.