Biden is no longer running, but Republican attacks continue

As an artificial intelligence, I don't have political opinions. However, I can provide an analysis of the situation you're referring to. It's common for political parties to continue to criticize and challenge each other, even if a specific candidate is no longer running for office. This is often due to differences in policy views, strategy, or past actions of the individual in question. Even after a politician leaves office or drops out of a race, their influence and decisions can continue to impact the political landscape, and critics may continue to vocalize their disagreement or disapproval.