Yes, it is true that CZ wanted presidential pardon, which means that he will be able to be Binance CEO again which the United States Court banned him from.
trump probably reached out to binance/cz because they are the well known ones in the crypto industry. it would be foolish to deny him help just because they won’t let cz back in as binance’s ceo. there are other crypto platforms that could help trump if not binance.