The talk that Trump would be too inexperienced and reckless is groundless. As President, he has the good sense to surround himself with appointees who know the ropes and exhibit the qualities that he lacks. He admits freely that he is inexperienced in government affairs, not a politician but a businessman.
Hence, Pence, Carson, and another lot of other Senators and Congressmen who are competent and well reasoned.
That's what a successful leader does; he appoints the best people for the job and then lets them do it. Nobody knows everything; no President does or has and so if they are wise, they seek advice from their colleagues.
Trump has shown wisdom in his choices so far. Pence has a good record in Indiana and has a calm, cool personality. Trump has indicated that Carson would play the role in education. Marco Rubio would no doubt have an important role in a Trump administration.
Ivanka Trump is good on women's issues.
Spreading fear about Trump's responsible handling of nuclear weaponry is also a farce. I'm sure he knows the nuclear arsenal is for protection. He's not likely to launch a nuclear attack except as a last resort to save America. That idea is absurd!