WTF is the difference between a "Baby Evangelical" and a fully-formed douchebag?

[b] Prominent evangelical who met The Donald says he is sure the billionaire is now a 'baby Christian'[/b]😜
http://www.dailymail.co.uk/news/article-3660395/Has-Trump-God-Prominent-evangelical-met-Donald-says-sure-billionaire-baby-Christian.html