The Texas Supreme Court has ruled that a legislative subpoena cannot delay the execution of Robert Roberson, convicted of killing his daughter in 2003 under the contentious diagnosis of shaken baby syndrome, a conviction now under scrutiny due to evolving medical opinions. The Court's decision nullifies a temporary stay granted after bipartisan lawmakers issued a subpoena to Roberson, intending for him to testify about potentially flawed evidence used in his conviction. This ruling underscores the separation of powers, asserting that the legislature's authority does not supersede the judiciary's execution schedule. Roberson has gained support from lawmakers and medical experts who question the validity of his conviction, arguing that his daughter died from pneumonia. A new execution date has not been set, but it can proceed unless Texas Governor Greg Abbott intervenes with a reprieve. This case highlights the ongoing debate about the use of disputed scientific evidence in capital punishment cases.