A private school teacher in Hall County who is a newbie to the local Democratic Party plans to take on the role of David going up against Goliath as he prepares to challenge three-term U.S. Rep. Doug Collins for his 9th District congressional seat in 2018. Joshua McCall, who teaches Latin at Riverside Military Academy, told The Times that the defeat suffered by the Democratic Party at the hands of Donald Trump last year is opening the door for someone like him to come out of nowhere and run against Collins. “A lot of people have looked at the election of Donald Trump as a great disaster, and in a lot of ways it was for a lot of people,” McCall said.