Why can't I delete political spam texts?

[Android Central Question]

I'm getting unsolicited and unwanted text messages from politicians and political causes. I cannot delete either the text or the conversation from these spammers. Is this just a "feature" from Google to push SMS ads at me?

 

[B. Diddy]

Welcome to Android Central! Which phone and which texting app? You should always be able to delete a text thread, and there ought to be a way to block that number as well. And no, it's not some Google scheme to push ads.