Not true.
The SEC primaries will determine where the race is going. I imagine this is why Trump is trying so hard to deflect the spot light from his liberal roots. The southern states are dominated by conservatives. They are pro life, pro 2nd amendment. If these voters start to see that Trump has no history of supporting these issues his support may disappear.
I think it is. I also think the Canadian thing is a big problem for Cruz and he knows it.