Michael Petyo is a carpenter, a U.S. Navy veteran, a grandfather and a Russian Orthodox Church cantor who likes to boast about his homemade nut rolls. He also is a candidate for president of the United States.

The 66-year-old Indiana man has no big financial backers and little political experience outside of two failed runs for Congress, and his odds of winning are almost nil. But that has not stopped him from thinking he is the one to succeed President Barack Obama.

Petyo is among a rising number of Americans who aspire to be president, due to what psychology experts describe as growing narcissism, distrust of leadership and the power of social media to reach the public.