Interesting:

Stein reports that having asked Niemller why he ever supported the Nazi Party, Niemller replied:
I find myself wondering about that too. I wonder about it as much as I regret it. Still, it is true that Hitler betrayed me. I had an audience with him, as a representative of the Protestant Church, shortly before he became Chancellor, in 1932. Hitler promised me on his word of honor, to protect the Church, and not to issue any anti-Church laws. He also agreed not to allow pogroms against the Jews, assuring me as follows: “There will be restrictions against the Jews, but there will be no ghettos, no pogroms, in Germany.”
I really believed, given the widespread anti-Semitism in Germany, at that time—that Jews should avoid aspiring to Government positions or seats in the Reichstag. There were many Jews, especially among the Zionists, who took a similar stand. Hitler’s assurance satisfied me at the time. On the other hand, I hated the growing atheistic movement, which was fostered and promoted by the Social Democrats and the Communists. Their hostility toward the Church made me pin my hopes on Hitler for a while.
I am paying for that mistake now; and not me alone, but thousands of other persons like me.