Labour overturned huge Conservative majorities to win by-elections in Mid Bedfordshire and Tamworth.
Newly-elected Keir Mather, 25, hits back at suggestions he is too young to relate to constituents
The Liberal Democrat MP says it is "a huge privilege" to serve her Somerton and Frome constituents.
Aged 25, Mr Mather overturned a 20,137 Tory majority to win the Selby and Ainsty seat for Labour.
Nicky Campbell tells the Labour leader people "want answers" over expanding Ulez to outer London
"Still a long way to go," Labour leader says, after losing by-election dominated by climate policy.
Labour and the Lib Dems take two safe Tory seats in by-elections, but Rishi Sunak avoids a clean sweep.
Liberal Democrat leader Ed Davey's efforts to rebuild his party see numbers of Lib Dem MPs rising.
The Labour leader urges the London mayor to "reflect" after the Tories hold Uxbridge and South Ruislip.