1. He hasn’t always been a Christian

[1a. TUCC is not what I would call a Christian church... and not just because they teach that one can be a Muslim and Christian at the same time.]

2. Obama lied when he said his grandfather was Muslim “just because he’s from that country” and when he said that he has never been a Muslim.

Kenya is predominantly Christian, the Luo people are predominantly Christian, that region is predominantly Christian, his grandfather became a Muslim, stating — as Obama wrote in “Dreams from My Father” — that he despised Christ and loved Mohammad because Jesus is like a woman and Moham is a real man who kills his enemies [read "Dream from My Father if you have any doubts]

Obama was raised Muslim, primarily by his step-father, attended mosques, recited the Muslim call to prayer, and was registered in his Indonesian school as a Muslim citizen of Indonesia.

Follow whatever politics you like, but this is all documented as fact:

http://brianakira.wordpress.com/2008/08/02/obama-unfamiliar-with-truth/

Therefore, Obama has serious character issues, and Powell has, like most Obama supporters, just distorted the issues.