What the House of Representatives means in US politics - and how it could change at the midterms

The House of Representatives is the lower chamber of the US Congress and is made up of 435 seats.  The number of seats each US state receives depends on its population size. California, the most populous state, has 53 representatives while seven states - Alaska, Delaware, Montana, North Dakota, South Dakota, Vermont and Wyoming have just one representative. The Republican Party currently controls the chamber with a 43-seat majority, but it is widely expected that the Democrats will gain...