History.com: Senator Huey Long is shot in the Louisiana state capitol building. He died about 30 hours later. Called a demagogue by critics, the populist leader was a larger-than-life figure who boasted that he bought legislators ‘like sacks of potatoes, shuffled them like a deck of cards.’ He gave himself the nickname ‘Kingfish,’ saying ‘I’m a small fish here in Washington. But I’m the Kingfish to the folks down in Louisiana.’
In 1928 Long became the youngest governor of Louisiana at age 34. … His populism led to an impeachment attempt, but he successfully foiled the charges. In 1930, he won the election for Louisiana senator but declined to serve until his handpicked successor was able to win the governor’s seat in 1932.
Soon after vigorously campaigning for Franklin Roosevelt in 1932, Long, with his own designs on the office, began loudly denouncing the new president. In response, many of his allies in the Louisiana legislature turned against him and would no longer vote for his candidates. In an effort to regain power in the state, Long managed to pass a series of laws giving him control over the appointment of every public position in the state, including every policeman and schoolteacher.
Long, who was planning to take on Franklin Roosevelt in the next election, was shot by Dr. Carl Weiss at point-blank range outside the main hall of the capitol building. Weiss’ motives continue to be debated, but some believe he was angry about rumors Long had spread about the doctor’s in-laws, who had opposed Long politically.”