The MPs say the current first-past-the-post system for general elections is "broken".
The switch from First Past The Post to the Supplementary Vote had been expected to come into force by May 2027.
The results in England earlier this month showed that the country has emphatically moved from a two-party system to a multi-party system.
Recent local elections in England show growing fragmentation, with smaller parties like Reform UK, the Lib Dems, and the ...