By Karol Badohal WARSAW (Reuters) -Police entered Poland’s presidential palace to detain two of their former bosses on Tuesday, executing a court order to take the ex-interior minister and his deputy to prison and escalating a row between the head of state and the new government. Prime Minister Donald Tusk had earlier accused President Andrzej Duda of obstructing justice after the two lawmakers appeared at the palace, prompting police to search for them in cars leaving the building. The accusations over the two lawmakers – Mariusz Kaminski and Maciej Wasik – were the latest salvo in a row that…