Final answer:
Nicholas Biddle was the president of the national bank during the rechartering controversy.
Step-by-step explanation:
The president of the national bank during the rechartering controversy was Nicholas Biddle. He was the president of the Second Bank of the United States from 1823 to 1836. The rechartering controversy refers to the political battle over whether to renew the bank's charter, which ultimately led to its downfall.
Learn more about Rechartering controversy of the national bank