A big bundle of principal authority council by-elections this week, split over two days with contests on both Tuesday and ...

New party member data from Tim Bale, Paul Webb and Stavroula Chrona throws light on how many party members do what.

YouGov polling shows how highly Winter Fuel Payments feature in the reasons people give for being disappointed with Labour.

Some striking figures from More in Common about how many Labour voters now regret their general election vote.