Yeah, he was was but by a slim margin and it was a tenuous one at that. It was the Reichstag fire that allowed him to sieze full power, suspend elections and outlaw all other political parties. Lefties always need violence to come to power.
The Nazi Party may have been the largest party, but Hitler himself lost every time he ran for President against Hindenburg.
Sounds a lot like the recent Turkey revolution, at least to me.