The world’s most-used search engine is so powerful and national elections are so tight, that even a tiny tweak in Google’s (GOOGL, Tech30) secret algorithm could swing the 2016 presidential election, according to Robert Epstein, senior research psychologist at the American Institute for Behavioral Research and Technology.

The world's most-used search engine is so powerful and national elections are so tight, that even a tiny tweak in Google's (GOOGL, Tech30) secret algorithm could swing the 2016 presidential election, according to Robert Epstein, senior research psychologist at the American Institute for Behavioral Research and Technology.