Alex Kent/The Washington Post via Getty ImagesThomas Braziel is skeptical of the prediction market boom. The investor expects shifting political winds to bring more regulation for Kalshi and Polymarket.Tighter rules on what people can bet on would be a blow to their businesses. Thomas Braziel has had front row seats to a lot of the upheavals that have rocked markets over the years, and he says the good times in prediction markets today could cha…