Final answer:
The provided information focuses on Huey P. Long and offers no details regarding Champ Laughlin's role at the Delta Planters Bank, therefore a definitive true or false answer cannot be given.
Step-by-step explanation:
The claim that Champ Laughlin later became vice-president of the Delta Planters Bank seems to be unrelated to the provided reference information which discusses Huey P. Long, a significant political figure in Louisiana's history. Huey P. Long was known as a charismatic populist who served as the governor of Louisiana and was later elected to the U.S. Senate. His untimely death caused by an assassin halted any potential political rivalry with Roosevelt in the 1936 presidential election. No context is given in the provided material to confirm or refute whether Champ Laughlin became vice-president of the Delta Planters Bank. Therefore, it would be inappropriate to assert a true or false response to the student's statement without additional information.