The most effective phone calls take less than a minute: say your name, your city or ZIP code, and what you support/oppose, maybe a sentence on why. You’ll be marked down on a spread sheet that is discussed at the daily office strategy meeting.
Other actions like brief emails, meeting in-person at the district office, meeting in-person at the DC office, can also be effective, but take more time and energy. Emails aren’t always read right away like a phone call must be answered for example. And you generally need to make an appointment for an in-person meeting.
No. No party received a majority in that election. The liberal government (Hindenburg) handed Hitler power. Sound familiar?
Then liberals indirectly elected him
I’m sure tons of people that voted for the liberal party in that election were very unhappy with Hindenburg’s decision to make Hitler Chancellor.
I could be mistaken, but I believe Hindenburg’s party could have formed a coalition government with the Communists/socialists/trade unionists to defeat the Nazis, but instead decided to hand power over to a fascist autocrat. If we had a (superior imo) parliamentary system, we may have had a similar opportunity (and more than two political parties).
So I would continue to make the distinction between the liberal voters, and the liberal government of the Weimar Republic.