At one time Texas Democrats were more Conservative than most Republicans, Ma Richards, was the last, as by then even Texas Democrats were taken over by the Left. Remember, JFK went to Texas to try to shore up differences between Conservative and Liberals in the Texas Democratic Party. Imagine something like that happening today, LOL, there are no Conservative Democrats.
Was Richards really a conservative Democrat? I did not live in Texas at the time, but my understanding had always been that, despite her folksy mannerisms, she was always squarely in the liberal wing of the party.
I had always heard the “last of the conservative Democrats” was Jack Ogg, who I had the privilege to meet before he passed a few years ago, and whose daughter is now the Harris County DA (a friend, but I voted against her).