Only 25 percent of voters think Trump is a serious candidate for president, which has literally not changed since 1999. At that time, 23 percent of voters viewed Trump as a serious candidate when he ran briefly for the Reform Party’s nomination the following year. Right now, 74 percent thinks he’s not serious, and that figure hasn’t changed since 1999 as well. One third of the country views him favorably, which is abysmal. But more Republicans tend to view him as a serious candidates when you break it down by party–and they also view him in a much more favorable light...