Prime Minister Boris Johnson raised the prospect of a snap election after suffering a major parliamentary defeat on his first key Brexit vote.
Lawmakers - including 21 of Johnson's fellow Conservatives - voted 328 to 301 to seize control of the Brexit agenda.
This means they can bring forward a bill seeking to delay the UK's exit date.
In response, Johnson said he would seek action on that election bill Wednesday if he sees a second defeat.

Hope for progress after US, Iran hold first shuttle talks in months
Four killed in Gaza in strikes, Israel says it killed a Hamas finance chief
Philippine Senate lowers threshold for conviction in VP Duterte's impeachment trial
Pakistan tightens security ahead of march planned by Imran Khan's party
Search continues after death toll from capsized Indonesia ship rises to 20
Trump urges compete isolation of Iran, expects deal after election
Canada to pledge $70 million in international aid for Palestine
Mexico classrooms go phone-free under new school rules
