Per your link, Johnson was under suspicion for a congressional election a couple decades before he became president. This was likely a function of a typical ele

Per your link, Johnson was under suspicion for a congressional election a couple decades before he became president. This was likely a function of a typical election at the end of the era of machine politics (and not sure why you would mention LBJ rather than Kennedy’s victory in IL in 1960, which may well have been dispositive in an American presidential election - but then again, so was ballot graphic design in one county in one state in 2000). In LBJ’s 1964 presidential election victory, he won an absolutely overwhelming landslide. I am not really sure what point you think you are proving.