Donald Trump has always been an outspoken and loud person in different parts of the American past. He made his money by dominating the real estate industry and making good business deals. Although his father was rich, and he is said to be more successful. He owns many properties, businesses, his own place, and Trump Towers, and was once the owner of The New Jersey Generals,a former USFL team. People question him because although he has been very successful in business, he has no prior experience in politics.
The American public is more than tired of having false hope in candidates and future presidents who promise a bunch of change for the better just to receive more votes. People are struggling across the country in many ways such as gun violence, living on minimum wages, people who are laid off from once prosperous jobs (especially in the Rust Belt), people who are unemployed, and people struggling for equality in many ways and in many places. The promise of a new president doesn't mean that any of these things will change. Even if a president or future president really wants to make a change, there could be many obstacles that stand in their way like budget, resources, and resistance from the people or Congress/House of reps.
So what does it actually mean to “make America great again”? There is no actual definition or meaning; people can only piece together their own idea to understand it. Trump probably intends for that to mean that America will be strong, independent, financially secure, and not as politically correct. His strong willed personality, word choice, and powerful speeches lead others to think that our country would become too power hungry in the government and become obsessed with our military like a dictatorship.
To be completely fair, no one really knows how it will be when the next president comes. Presidential candidates can be compared to salesman because they are trying to “sell” their ideas and views in order to win votes. Like salesman, they do not always do everything that is promised and exaggerate things to make them seem better.
So if there is skepticism, it is understood. Donald Trump's ideas may seem very extreme, and they are sure to fail. This is true for all the candidates and some of their ideas though. Bernie Sanders has great ideas on education, but they require work, change, and not to mention money. Nothing any of the candidates say is totally guaranteed, so voters the most one can do is stay informed and educated. Vote for whoever lines up with your own personal values and ideas. If you know that you have made an educated and thoughtful vote, then you are doing the best you can as a citizen. Everyone has their own thoughts of what would make America great again. There is no true definition, but we can take the good points and ideas from the candidates in hope that they will follow through on their promises to make our country a safer and more financially secure country with a balanced military power/relations and higher rankings on the industrial and educational level.