The church has always prayed for civil rulers.
When Nero was persecuting the church – killing Saints Peter and Paul – the church prayed for him. When his successor Galba was killed by Otho, the church prayed for the new Emperor, Otho. And then Vitellius. And then Vespasian. And so on down through the years.
The church prays for kings and all those in authority – that they be given wisdom, that they rule justly, and – if they be outside the church – that they repent of their sin and turn to Christ and receive the promised salvation.