My favourite TDA Rule!
60: Exposing Cards and Proper Folding
A player who exposes his cards with action pending may incur a penalty, but will not have a dead hand. The penalty will begin at the end of the hand...
In this specific case, the hand continues as normal. If A does not have a history of being an angle shooter or this was a first time mistake, a warning is given out such as by Matt Savage. WPT Fallsview did not know this rule and improperly killed mistakenly exposed hands, costing players thousands of dollars! Giving a 10-round penalty for an honest mistake may be even worse than improperly killing one hand.
AcidJoe;378254 wroteOn the river player Hero bets, player A re raises, Hero makes no declaration drops a re raise and says I need to see where I am. Player A tables his cards. What should the ruling be here.