“now they are saying it was Cruz did dirty tricks”
He and his workers were telling Carson voters that Carson had dropped out of the race. (He hadn’t.) Then Cruz asked them for the votes they would’ve given to Carson. So Cruz is collecting votes unethically, Carson isn’t getting votes he should’ve had, and Trump slides lower because Cruz is stacking the deck.
Cruz’s workers were also lying about Trump’s positions.
Cruz couldn’t have acted any more like a dirty politician.