Dodd-Frank doesn't effect credit cards. The rewards that used to come with debit cards were eliminated once the Durbin Amendment was approved as part of the Dodd-Frank Act.

While Dodd-Frank repeal passed the GOP heavy House, don't expect it to pass the Senate; thus, we won't be seeing debit card rewards return. It's also already been stated that Durbin will remain, unfortunately. Merchants don't need to save money on interchange fees, there isn't an advantage to it.