I'm sure all of you remember those "polls" in past cycles in which Ron Paul's acolytes flooded online polls and won every one of them.
The Drudge poll is a self-selecting poll, meaning people choose to respond to it. It is not scientific, since there is no way to get a representative sample of the electorate in a self-selecting poll
In other words, the Drudge poll can be manipulated, as it no doubt was. I could vote six or eight times, depending on how many browsers I signed in on, how many computers I have, or how many different email addresses I chose to use.
THe only scientific poll released so far, from GK, has Rubio the winner over Cruz by eight points.