British PM Rishi Sunak's Conservative party faces two major by-election defeats.
The losses signify a decline in Conservative support.
Only the third time a British PM has lost two by-elections on the same day since 1991.
Labour Party won Mid-Bedfordshire and Tamworth.
Largest deficit overcome in a by-election for Labour since 1945.
Sunak attempted to cast himself as a bold reformer.
Voters are concerned about inflation, economic stagnation, and healthcare waiting times.
Sunak announced plans to scrap a high-speed railway line.
Polls show Sunak struggling to close the gap with Labour.
Resignations of politicians close to former PM Boris Johnson triggered the by-elections.