Why are Americans confused about Obama's religion?

In June 2012, Pew asked the question again and found that 36 percent — still more than one-third of Americans — did not know Obama’s faith, while 45 percent identified him as a Christian. (The poll, taken during the 2012 presidential campaign, found that more people — 51 percent — correctly identified Mitt Romney as a Mormon than the 45 percent who said Obama is a Christian.)

The polls are anywhere from two to four years old. There hasn’t been much research on the topic recently, so it’s possible views have changed in one direction or the other.
Whenever the issue pops up, Obama’s most ardent supporters are quick to blame conservative media for misperceptions about Obama’s religion. But it’s possible something in Obama’s public presentation of himself has also created confusion among a significant number of Americans about his religion. The fact is, Obama’s religious roots and development have always been a complicated story. In 2010, after the Pew poll came out, I wrote about the causes of public confusion about Obama and faith, particularly the belief that he is a Muslim…