Not sure entirely about that. Nazis were still a party that held up to 44% of seats in the reichstag (before they were all nazi) with like 6 different parties. Hitler wasn't isolated. The population voted for him and his party. Hindenburg didn't like Hitler but essentially passed away at a terrible time and Hitler outplayed Papen who was meant to keep him in check. Hindenburg felt he had to since they had the closest to a majority in the reichstag.
"In the end, the president, who had previously vowed never to let Hitler become chancellor, appointed Hitler to the post at 11:30 am on 30 January 1933, with Papen as vice-chancellor.[91] While Papen's intrigues appeared to have brought Hitler into power, the crucial dynamic was in fact provided by the Nazi Party's electoral support, which made military dictatorship the only alternative to Nazi rule for Hindenburg and his circle. [Sauce]
She was the candidate with so little enthusiasm of the voters. That still lost to drumpf with almost 3 million more votes...