Public approval affects how successful a president is in passing laws in Argentina, especially when their party has a majority in Congress. When the president is unpopular, their own party may block their bills to protect the party's interests. In the Chamber of Deputies, bills are more likely to be shelved if the president is unpopular, regardless of which party controls the chamber. However, in the Senate, the president's party is more likely to go against public opinion and block bills. This unexpected difference may be due to senators having more independence and not always following party lines.