The First Amendment is often inconvenient. But that is beside the point. Inconvenience does not absolve the government of its obligation to tolerate speech.
No one questions the validity, the urgency, the essentiality of the Voting Rights Act.
The remedy for speech that is false is speech that is true. This is the ordinary course in a free society. The response to the unreasoned is the rational; to the uninformed, the enlightened; to the straight-out lie, the simple truth.
If the case is close, 5-4, and let's say you are on the side that prevailed with the majority, there are not a lot of high-fives and back slaps. There is a moment of quiet, a moment of respect, maybe even sometimes awe in the process. We realize that one of us is going to have to write out a decision which teaches and gives reasons for what we do.
Political speech is indispensable to decision-making in a democracy, and this is no less true because the speech comes from a corporation rather than an individual.
Asking questions is an essential part of police investigation. In the ordinary sense a police officer is free to ask a person for identification without implicating the Fourth Amendment.