Because they come from the same ethnic backgrounds
The 1920s have long been remembered as the "Roaring Twenties," an era of unprecedented affluence best remembered through the cultural artifacts generated by its new mass-consumption economy: a Ford Model T in every driveway, "Amos n' Andy" on the radio and the first "talking" motion pictures at the cinema, baseball hero Babe Ruth in the ballpark and celebrity pilot Charles Lindbergh on the front page of every newspaper. As a soaring stock market minted millionaires by the thousands, young Americans in the nation's teeming cities rejected traditional social mores by embracing a modern urban culture of freedom—drinking illegally in speakeasies, dancing provocatively to the Charleston, listening to the sex
rhythms of jazz music.
I’m sorry but can’t u just search up? But the answer but it’s Lyndon Johnson I think