While the rest have expressed some good views, some of their agenda such as amnesty and importing Syrians will do an enormous amount damage. Rubio and Jindal do not even qualify under the Constitution. One does not need to be a lawyer to understand that. Controversy has existed around Cruz. IMHO, he qualifies.
It is very annoying to see US citizenship cheapened by the Marxists running our government and courts. Natural Born Citizen used to mean two (not same sex) US citizen parents and born in the USA. Exceptions being diplomatic core and military. That of course was back in the day when it was illegal in the USA to have dual citizenship. I miss our pre LBJ country, sad to see that now anyone born anywhere with a parent claiming to be American citizen can stand for the presidency. This is not going to end well.