Trump is a celebrity with a built-in fan base, but it is unclear how strong his support will remain once he is forced to answer serious questions like a serious candidate and how many of his current supporters will defect once they learn more about other candidates in the race, all of whom presently have lower name recognition in these early stages of the 2016 campaign.  Further, Trump is currently riding a wave based on his skillful tapping into populist anger at Washington, but even putting aside his qualifications for office, he's not particularly conservative, so the odds of him winning over primary voters (who tend to want "real" conservative candidates) is slim.  And finally, there is a large segment of the population, including many Republicans, who will never vote for Trump under any circumstances.  Trump likely has a larger built-in opposition than any other current candidate for president, Hillary Clinton and self-proclaimed socialist Bernie Sanders included.

To use gambling as a means to earn a living.
Not everybody can do this, but a minority can. These are the professional gamblers. Professional gamblers literally gamble for a living. How is that possible, you say? How can you make money from a gamble? Well, what these gamblers do is they cut the gaming part out of the games they play as much as possible. Games of skill which bring positive results - video poker, poker, blackjack, craps - are what the pros like to play. When you gamble in this way, you are not really gambling like ordinary folks do. You're playing for money. Actually, it's a very cool job if you ask them!

savings, you need to know your goals to decide if you should invest. Specifically, you need to know which of your goals are short-term, and which are long-term.
Short-term goals are things you plan to do within the next five years
Medium-term goals are things you plan to do within the next 5-10 years
Longer-term goals are ones where you’re won’t need the money for ten years or more
For your short-term goals, the rule is to save into cash deposits. The stock market may go up or down in the short term and if you invest for less than five years you might well make a loss.
For longer-term goals, it’s often best to invest because inflation can seriously affect the value of cash savings over the medium and long term. The stock market tends to do better than cash over time. The longer you can leave your money, the more chance you have of making a profit.
For the medium term, cash deposits may sometimes be the best answer, but it depends on how much inflation risk you are willing to take, and whether you need a certain sum on a certain date.
Investing money is better than saving but it all depends on your goal and your need for that money.