You literally have no reason to vote for Cruz. Aside from his "conservative principles," what actual plans of action do you support from him? Is it immigration? He supported H1B1, doubling Green cards, and has been lying since December about his flop flop on legalizing illegals.
Is it taxes? His flat tax won't win in the general election and his European style VAT is awful.
Is it Free Trade? Free Trade is killing this country, and Cruz's opposition to TPP is simply based on its "immigration" positions, SUPPOSEDLY, because Cruz is not an honest person.
Is it abortion? Republicans have been campaigning against abortion for years and years. Where's the constitutional amendment? Where is the concerted effort to change public opinion? It's not there. It's only there during election season so that Republicans can demagogue for votes.
With Trump we get the wall. Immigration moratorium. An American First immigration/H1B system. No more nation building. A fighter who will tackle NAFTA, TPP, and has the track record that shows he'll do exactly what he says against the globalists.
So what's there to vote for Cruz for? He's nothing but a slimy liar who is staying in to give a win to the GOPe.
Some FR links that sum up what I think about Trump: