Over half of all Conservative backbenchers rebelled against David Cameron on the vote to ban foreign criminals claiming their right to a family life to avoid deportation, Labour said.
Anticipating a rebellion, Downing Street ordered Conservative ministers to abstain.
The Labour Whips' Office tweeted:
Initial count is that around 85 Tory MPs, over half of all tory backbenchers, rebelled against @david_cameron on Raab's Amdt.
Hearing that Tory whips were preventing Tory MPs voting against Raab Amdt even though Gov said it was illegal - shambles