Warren Buffet, a long-time Democrat, said he will judge President Trump on how the country is doing four years from now. Buffet noted his biggest concern is how Trump handles weapons of mass destruction, the billionaire told CNBC on Monday. While Buffet expects the economy to grow over Trump's presidency, he said he will unlikely vote for him after four years. "Well it depends on who he is running against. I would say it would be unlikely," he told CNBC. Buffet is known for agreeing with Trump on several economic issues, such as entitlement programs and Social Security.