Trump’s red wave confounded fans. On Wednesday, former President Donald Trump left his skyscraper home bearing mysterious red splotches on his right hand, according to The Daily Mail. The source of the marks set online sleuths into a tizzy. POLL: Should Trump be allowed to run for office? “Too many jelly doughnut,” wrote @JeffreyWelshans in a tweet. @DebiFranklin1 blamed it on the 45th president’s penchant for French fries. “Ketchup from last night’s McDonald’s run.” “Red ink from Top Secret documents,” asked @bryan6086464012. ALSO READ: Behold: Donald Trump the chosen son — and religious con …