Sky News' deputy political editor Sam Coates and Politico's Jack Blanchard are here with their guide to the day ahead in politics.      On the morning after Joe Biden announced he would withdraw from the US presidential race, Jack and Sam talk about all the developments across the pond. And with about a week and a half left of parliament sitting before summer recess, they discuss the prime minister's agenda for the week and look at how the chancellor is dealing with public finances.     Email Jack and Sam: [email protected]