Dr. Craig is a liar.

[Mister Agenda]

First, thanks for addressing the points and not what everyone else did: various versions of "prove it". 

This list was from the link I supplied. I did not write it (I'm really tired of writing it). 

Regarding your point, it seems you are saying the argument is special pleading for God. P1 says "began to exist". Isn't the argument of most atheist to say the universe did not begin to exist? Doesn't that simply move the question to "did the universe begin to exist"?  No special pleading.

No one knows whether it began to exist or always existed in some form. It will probably be 20 years before we can hope to begin to get evidence confirming or disconfirming any of the various scientific hypotheses for the origin of the universe.

Either way, there are hypotheses that fit the data we already have and for which the math works.