Hoo boy!  This one's confusing.  Had to break out the ol' Google Translate.

"working on a tax reform bill" that would "generate revenue from Mexico" 
TRANSLATION: Americans will pay for it.

"But the point is we are going to finance the Secure Fence Act, which is the construction of the physical barrier on the border."
TRANSLATION: Americans will pay for it.

"We have to explore a number of options on how to pay for that. "
TRANSLATION: Americans will pay for it.

"we're going to give the president the tools necessary – whether it is a non-offset spending on this on a short-term basis, that we find the offsets at a later date."
TRANSLATION: Americans will pay for it.

"McCain predicted that there will a "downpayment to begin construction" of border security"
TRANSLATION: Americans will pay for it.

Good 'ol Google  I can always count on you to cut through the fog.