Injury has to be concrete though, and it cannot be conjectural. How would Trump prove that a significant amount of Cruz support would flow to Trump when there are 10 other candidates in the race?
Trump would have to show a 3rd party not in the suit would not have affected the outcome. He would have to get other candidates to join his suit and they would collectively have standing.
I dont see speculation and hypotheticals winning any standing in any court.
Very easy! I am glad you are asking easy questions today!
Everybody and their uncle knows there are only 2 candidates running who oppose the GOPe. Every pollster worth his or her salt will testify in court that it is the insurgents Trump & Cruz against all the other entrenched GOPe candidates. Either one of them quits the race, the other one benefits.
In one of the earliest Obama eligibility lawsuits, American Independent Party candidate Alan Keyes almost got standing. The federal judge wrote in his opinion that he was hesitant to deny standing based on what MIGHT occur in an election but the fact that Ambassador Keyes was only on the ballot in a few states and had zero chance of gaining 270 Electors was the deciding factor in ruling against standing.